Chullin Daf 10 (חולין דף י׳)
Daf: 10 | Amudim: 10a – 10b | Date: Loading...
📖 Breakdown
Amud Aleph (10a)
Segment 1
TYPE: תשובת ר׳ יהושע בן לוי
Resolution of 9b’s closing question — sherazim uncover but don’t cover
Hebrew/Aramaic:
מִפְּנֵי שֶׁדַּרְכָּן שֶׁל שְׁרָצִים לְגַלּוֹת, וְאֵין דַּרְכָּן לְכַסּוֹת.
English Translation:
It is due to the fact that it is the typical manner of creeping animals to expose the contents of a vessel so that they may drink. Therefore, the exposure of the water is attributed to a creeping animal or to a ritually pure person. By contrast, in a case where he left the vessel exposed and found it covered, the concern is that it was an impure man who covered it, since it is not the typical manner of creeping animals to cover exposed vessels. Evidently, with regard to prohibition or ritual impurity, there are circumstances of uncertainty when the ruling is lenient.
קלאוד על הדף:
R. Yehoshua ben Levi’s answer to his own closing question on 9b: the mishna’s asymmetric treatment of the flask reflects empirical likelihoods. When a covered vessel is found uncovered, the most plausible cause is a thirsty creeping animal — and creatures uncover but never cover. So no concern about a tamei person uncovering it. But when an uncovered vessel is found covered, no animal does that — only a person could have closed it, and we worry he was tamei. The mishna therefore demonstrates that even within tumah-and-issur there can be safek-leniency where empirical “ways of the world” point clearly in one direction. The contrast with mei megulin — where the water is forbidden under all circumstances — sharpens the lesson.
Key Terms:
- שְׁרָצִים = creeping creatures (weasels, snakes, mice) — the empirical agents whose habits the mishna invokes
- דַּרְכָּן = “their way” / typical behavior — a foundational rabbinic category for resolving safek
Segment 2
TYPE: דיוק נוסף
A second inference from the same mishna — when nothing changed, no concern at all
Hebrew/Aramaic:
אִי נָמֵי, טַעְמָא דְּהִנִּיחָהּ מְגוּלָּה וּבָא וּמְצָאָהּ מְכוּסָּה, מְכוּסָּה וּבָא וּמְצָאָהּ מְגוּלָּה, הָא מְצָאָהּ כְּמָה שֶׁהִנִּיחָהּ – לָא טוּמְאָה אִיכָּא וְלָא פְּסוּלָא אִיכָּא.
English Translation:
Alternatively, it can be inferred from the baraita that the reason the contents of the vessel are impure or disqualified, respectively, is that he left it exposed and came back and found it covered or that he left it covered and came back and found it exposed. But if he found the vessel just as he left it, there is neither impurity nor disqualification.
קלאוד על הדף:
A second reading of the mishna, sharpening the lesson. Both halves of the mishna are about a CHANGE in state — covered-to-uncovered or uncovered-to-covered. Implicit: if you left it covered and found it covered, there’s no concern at all (no tumah, no פסול). For prohibition and impurity, “no change” means “nothing happened.” But notice: this logic doesn’t hold for mei megulin. Even if you LEFT it uncovered and FIND it still uncovered with no evidence of disturbance, the water is forbidden — because the very state of being uncovered creates the concern. סכנה reaches further than איסור. The Gemara now drives home the inference.
Key Terms:
- כְּמָה שֶׁהִנִּיחָהּ = “just as he left it” — no observable change
- לָא טוּמְאָה אִיכָּא וְלָא פְּסוּלָא אִיכָּא = neither impurity nor disqualification arises
Segment 3
TYPE: שמע מינה
The conclusion the daf has been building toward — חמירא סכנתא מאיסורא
Hebrew/Aramaic:
וְאִילּוּ סְפֵק מַיִם מְגוּלִּים אֲסוּרִין, שְׁמַע מִינַּהּ: חֲמִירָא סַכַּנְתָּא מֵאִיסּוּרָא, שְׁמַע מִינַּהּ.
English Translation:
But in a situation of uncertainty where he left exposed water and then came and found the vessel exposed, the water is forbidden under all circumstances. Learn from it that danger is more severe than prohibition. The Gemara affirms: Indeed, learn from it.
קלאוד על הדף:
The Gemara now states the principle openly: חֲמִירָא סַכַּנְתָּא מֵאִיסּוּרָא — danger is treated more stringently than prohibition. This formula, born here, becomes one of the most-cited axioms in halacha. The proof is that even with no observable change in state, an uncovered vessel triggers stringency for reasons of safety (snake venom) where the parallel tumah-rules would not. The principle has profound downstream applications — in medicine, in food safety, in shabbat-violation for life-threatening illness — wherever שאלות of risk and prohibition compete.
Key Terms:
- חֲמִירָא סַכַּנְתָּא מֵאִיסּוּרָא = “danger is more severe than prohibition” — a foundational halachic maxim
- שְׁמַע מִינַּהּ = “learn from it” — the formula concluding a successful proof
Segment 4
TYPE: משנה ופירוש
The mei megulin mishna in detail — three liquids and the worst-case time-window
Hebrew/Aramaic:
תְּנַן הָתָם: שְׁלֹשָׁה מַשְׁקִין אֲסוּרִין מִשּׁוּם גִּלּוּי – מַיִם, וְיַיִן, וְחָלָב. כַּמָּה יִשְׁהוּ וְיִהְיוּ אֲסוּרִין? כְּדֵי שֶׁיֵּצֵא הָרַחַשׁ מִמָּקוֹם קָרוֹב וְיִשְׁתֶּה. וְכַמָּה מָקוֹם קָרוֹב? אָמַר רַב יִצְחָק בְּרֵיהּ דְּרַב יְהוּדָה: כְּדֵי שֶׁיֵּצֵא מִתַּחַת אוֹזֶן כְּלִי וְיִשְׁתֶּה.
English Translation:
We learned in a mishna there (Terumot 8:4): Three liquids are forbidden due to exposure: Water, wine, and milk. How long shall they remain exposed and their contents will be forbidden? It is a period equivalent to the time necessary so that a snake could emerge from a proximate place and drink. And how far away is considered a proximate place? Rav Yitzḥak, son of Rav Yehuda, said: Even a period equivalent to the time necessary so that a snake could emerge from beneath the handle of the vessel and drink.
קלאוד על הדף:
The Gemara cites Mishna Terumot 8:4 to anchor the מים מגולין rules in a concrete shiur. Three liquids — water, wine, milk — become forbidden if left uncovered long enough for a snake to emerge from a nearby spot and drink. Rav Yitzchak son of Rav Yehuda offers the maximally-stringent definition of “nearby”: even a snake hiding under the very handle of the vessel. Any duration in which such an immediately-adjacent snake could have surfaced, sipped, and gone is enough to forbid the liquid. This worst-case shiur gives the practical force of חמירא סכנתא — the threshold for concern is set by the most pessimistic plausible scenario.
Key Terms:
- מַשְׁקִין = liquids (the three: מים, יין, חלב)
- גִּלּוּי = uncovering / exposure — the technical term for the forbidden state
- רַחַשׁ (rachash) = a creeping creature (here, a snake)
- אוֹזֶן כְּלִי = the handle/ear of the vessel — taken as the closest possible hiding spot
Segment 5
TYPE: דיוק לשוני
Tightening the shiur — round-trip time, not just outbound
Hebrew/Aramaic:
יִשְׁתֶּה? הָא קָא חָזֵי לֵיהּ! אֶלָּא, יִשְׁתֶּה וְיַחֲזוֹר לְחוֹרוֹ.
English Translation:
The Gemara asks: If it is only the time necessary for the snake to emerge and drink, doesn’t one see the snake drink, in which case there is no uncertainty? Rather, it is a period equivalent to the time necessary for a snake to emerge from a proximate place, drink, and return to its hole. If one left exposed liquid unattended for that interval, it is possible that the snake drank the liquid unseen by the owner of the liquid.
קלאוד על הדף:
The Gemara refines the time-window with a logical observation. If the snake had only emerged and drunk, the owner would have seen it doing so — no safek. The threshold of concern is therefore the time it takes for a snake to emerge, drink, AND return to its hole. Only then can the act have happened completely outside human observation — making it a true safek that the venom may have been deposited. The chiddush is methodological: the relevant shiur for risk is the “completely-out-of-sight” duration, not the bare physical action.
Key Terms:
- יַחֲזוֹר לְחוֹרוֹ = “returns to its hole” — completing the round-trip outside observation
- קָא חָזֵי לֵיהּ = “he would see it” — eliminating the safek if the act were partially observable
Segment 6
TYPE: מחלוקת אמוראים
A new sugya begins — Rav Huna vs Rav Chisda on the shochet who finds his knife notched after slaughter
Hebrew/Aramaic:
אִיתְּמַר: הַשּׁוֹחֵט בְּסַכִּין וְנִמְצֵאת פְּגוּמָה, אָמַר רַב הוּנָא: אֲפִילּוּ שִׁיבֵּר בָּהּ עֲצָמוֹת כׇּל הַיּוֹם – פְּסוּלָה, חָיְישִׁינַן שֶׁמָּא בָּעוֹר נִפְגְּמָה. וְרַב חִסְדָּא אָמַר: כְּשֵׁרָה, שֶׁמָּא בְּעֶצֶם נִפְגְּמָה.
English Translation:
§ It was stated: With regard to one who slaughters an animal with a knife that was afterward found to be notched, Rav Huna says: Even if, after the slaughter and before the knife was examined, he broke bones with the knife all day, the slaughter is not valid, as we are concerned that perhaps the knife became notched on the hide of the neck. And Rav Ḥisda says: The slaughter is valid, as perhaps it was on the bone that he broke with the knife after the slaughter that it became notched.
קלאוד על הדף:
A landmark dispute: a butcher slaughters with what seemed to be a smooth knife, then breaks bones with it for the rest of the day, and only later discovers a פְּגִימָה (notch). Was the notch already present during the shechita (invalidating it — a notched knife disqualifies)? Rav Huna: invalid — we suspect the hide of the throat was where the notch formed, meaning the shechita was already compromised. Rav Chisda: valid — we attribute the notch to the bones broken afterward. The fault-line is exactly Rav Huna’s chazaka principle from 9a — animal in חזקת איסור — vs. Rav Chisda’s competing principle, ספק וודאי. The two will be developed across the rest of the daf.
Key Terms:
- פְּגוּמָה (pegumah) = a notched/nicked blade — disqualifying for shechita
- שִׁיבֵּר בָּהּ עֲצָמוֹת = “broke bones with it” — post-shechita activity that could itself notch the blade
Segment 7
TYPE: ביאור טעם רב חסדא
Rav Chisda’s principle — אין ספק מוציא מידי ודאי
Hebrew/Aramaic:
בִּשְׁלָמָא רַב הוּנָא כִּשְׁמַעְתֵּיהּ, אֶלָּא רַב חִסְדָּא מַאי טַעְמָא? אָמַר לָךְ: עֶצֶם – וַדַּאי פּוֹגֵם, עוֹר – סָפֵק פּוֹגֵם סָפֵק לָא פּוֹגֵם, הָוֵי סָפֵק וּוַדַּאי, וְאֵין סָפֵק מוֹצִיא מִידֵי וַדַּאי.
English Translation:
The Gemara asks: Granted, Rav Huna stated his opinion in accordance with his halakha cited earlier (9a): An animal during its lifetime exists with the presumptive status of prohibition until it becomes known in what manner it was slaughtered. But as for Rav Ḥisda, what is the reason for his ruling that the slaughter is valid? The Gemara answers that Rav Ḥisda could have said to you: A bone certainly notches the knife, but with regard to hide, it is uncertain whether it notches the knife and uncertain whether it does not notch it. This is a case of certainty and uncertainty, and the principle is that an uncertainty does not override a certainty.
קלאוד על הדף:
Rav Huna’s logic is clear (his chazaka principle from 9a). What about Rav Chisda? The Gemara articulates his rule: bone certainly notches a blade; hide only might. So the post-shechita bone-breaking is a definite cause of notching, while the shechita-on-hide is only a possible cause. The principle is אֵין סָפֵק מוֹצִיא מִידֵי וַדַּאי — uncertainty does not displace certainty. We attribute the notch to the certain cause (bones), preserving the validity of the shechita. This is the second great principle of safek-resolution in the Talmud, alongside Rav Huna’s chazaka — and the rest of the daf will work out the tension between them.
Key Terms:
- אֵין סָפֵק מוֹצִיא מִידֵי וַדַּאי = “an uncertainty does not extract from a certainty” — a foundational rule of evidentiary attribution
- וַדַּאי פּוֹגֵם / סָפֵק פּוֹגֵם = “certainly notches / possibly notches” — the asymmetric strength of the two causes
Segment 8
TYPE: סיוע לרב הונא
Rava brings a baraita about tevila that seems to refute Rav Chisda’s principle
Hebrew/Aramaic:
מֵתִיב רָבָא לְסַיּוֹעֵיהּ לְרַב הוּנָא: טָבַל וְעָלָה, וְנִמְצָא עָלָיו דָּבָר חוֹצֵץ, אַף עַל פִּי שֶׁנִּתְעַסֵּק בְּאוֹתוֹ הַמִּין כׇּל הַיּוֹם כּוּלּוֹ – לֹא עָלְתָה לוֹ טְבִילָה, עַד שֶׁיֹּאמַר: ״בָּרִי לִי שֶׁלֹּא הָיָה עָלַי קוֹדֶם לָכֵן״. וְהָא הָכָא, דְּוַדַּאי טָבַל, סָפֵק הֲוָה עֲלֵיהּ סָפֵק לָא הֲוָה עֲלֵיהּ, וְקָאָתֵי סָפֵק וּמוֹצִיא מִידֵי וַדַּאי!
English Translation:
Rava raises an objection to the opinion of Rav Ḥisda to support the opinion of Rav Huna, from a baraita: If one immersed and emerged from the ritual bath and an interposing item was later found on him, then even if he had been engaged in handling that same type of item for the entire day after his immersion, the immersion does not fulfill his obligation. This is so until he will say: It is clear to me that this interposition was not on me beforehand. And here it is a case where he certainly immersed, and it is uncertain whether the interposition was on him at that time and uncertain whether it was not on him, and nevertheless, contrary to the opinion of Rav Ḥisda, the uncertainty overrides the certainty.
קלאוד על הדף:
Rava brings a powerful parallel against Rav Chisda. Someone immerses in a mikveh (a definite event); later, an interposing object (חוֹצֵץ) is found on him. Even if he handled such items all day, the tevila is invalid unless he can swear “בָּרִי לִי” — I am certain — that the object was not on him during the immersion. So here the certainty (he immersed) is being overridden by mere safek (when did the chatzitza arrive?). This is the exact pattern Rav Chisda denied — an uncertainty displacing a certainty. By Rav Chisda’s logic, post-tevila handling should be the “definite cause” of the chatzitza, allowing us to dismiss any safek about earlier presence. The baraita rules the opposite, supporting Rav Huna.
Key Terms:
- חוֹצֵץ (chotzetz) = an interposing substance that invalidates ritual immersion
- בָּרִי לִי = “it is clear to me” — the formula of definite testimony required to override the safek
- לֹא עָלְתָה לוֹ טְבִילָה = the immersion did not “rise” / count for him — invalid
Segment 9
TYPE: דחיית הסיוע
Rejecting Rava’s proof — the tevila case is governed by chazakat tameh
Hebrew/Aramaic:
שָׁאנֵי הָתָם, דְּאִיכָּא לְמֵימַר: הַעֲמֵד טָמֵא עַל חֶזְקָתוֹ, וְאֵימַר לֹא טָבַל.
English Translation:
The Gemara rejects that proof: It is different there, as it can be said: Establish the status of the impure person on the basis of his presumptive status of impurity, and say that he did not immerse properly.
קלאוד על הדף:
The Gemara rebuffs Rava’s proof on Rav Chisda’s behalf. The tevila case isn’t really a “definite vs uncertain” question — it’s a chazaka case. The person had a presumed status of tameh BEFORE the immersion (הַעֲמֵד טָמֵא עַל חֶזְקָתוֹ — leave the impure person in his chazaka). Without proof that the immersion succeeded, the chazaka of impurity continues. So the baraita is actually applying Rav Huna’s chazaka logic, not the universal principle that “safek displaces vadai.” Rav Chisda can preserve his rule: that principle doesn’t apply when chazaka is operative — it applies only when there is genuinely no chazaka in force.
Key Terms:
- הַעֲמֵד עַל חֶזְקָתוֹ = “leave it on its chazaka” — the standard idiom for invoking presumption
- חֶזְקַת טָמֵא / חֶזְקַת טָהוֹר = the prior-status presumptions in the laws of impurity
Segment 10
TYPE: קושיא ותירוץ
Pressing on Rav Chisda — why doesn’t the animal’s chezkat issur similarly apply?
Hebrew/Aramaic:
הָכָא נָמֵי, הַעֲמֵד בְּהֵמָה עַל חֶזְקָתָהּ, וְאֵימַר לֹא נִשְׁחֲטָה! הֲרֵי שְׁחוּטָה לְפָנֶיךָ.
English Translation:
The Gemara challenges: Here too, establish the status of the animal on the basis of its presumptive status of prohibition and say that it was not slaughtered properly. Why does Rav Ḥisda rule that it is permitted? The Gemara explains: That status has been undermined, as the slaughtered animal is before you. There is no indication that the slaughter was not valid, and most slaughtered animals are slaughtered properly.
קלאוד על הדף:
If chazaka can override the apparent immersion, why doesn’t the animal’s חזקת איסור (its chazaka of prohibition while alive) similarly override the apparent shechita? The Gemara answers: הֲרֵי שְׁחוּטָה לְפָנֶיךָ — “the slaughtered animal is right before you.” The animal’s chazakat issur has been observably overcome by the visible act of shechita. Coupled with the rov (most shechitot are valid), the chazaka has been displaced. By contrast, in the tevila case, the appearance of the chatzitza is itself evidence the tevila may have failed — there is reason to question its success.
Key Terms:
- הֲרֵי שְׁחוּטָה לְפָנֶיךָ = “behold, it is slaughtered before you” — visible evidence overriding the chazaka
- רוב (implicit) = the statistical majority — most shechitot are valid, supporting the visible state
Segment 11
TYPE: שקלא וטריא
The two cases pressed against each other — re’uta in the tevila case
Hebrew/Aramaic:
הָכָא נָמֵי, הֲרֵי טָבַל לְפָנֶיךָ! הָא אִיתְיְלִידָא בֵּיהּ רֵיעוּתָא.
English Translation:
The Gemara challenges: Here too, in the case of immersion, the status of impurity is undermined, as the person who has immersed is before you. The Gemara explains: The case of immersion is different, as a flaw developed in the presumptive validity of the immersion, since there is an interposition.
קלאוד על הדף:
If “the slaughtered animal before you” overrides the chazaka of issur, then “he immersed before you” should override the chazaka of tumah — but it didn’t. The answer pivots on the concept of רֵיעוּתָא (a substantive flaw): in the tevila case, the discovery of a chatzitza is itself a re’uta in the immersion’s validity — direct evidence that something may have been wrong. The chazakat tumah remains because the apparent fact of immersion has been actively undermined. This is the distinction between a chazaka displaced by visible action and a chazaka shielded by an emerging defect.
Key Terms:
- רֵיעוּתָא (re’uta) = a flaw, a doubt-raising development that compromises a prior chazaka
- אִיתְיְלִידָא בֵּיהּ = “developed in it” — the new fact emerging within the prior framework
Segment 12
TYPE: עצם המחלוקת
The conceptual crux — does a re’uta in the knife count as a re’uta in the animal?
Hebrew/Aramaic:
הָכָא נָמֵי אִיתְיְלִידָא בַּהּ רֵיעוּתָא! סַכִּין אִיתְרְעַאי, בְּהֵמָה לָא אִיתְרְעַאי.
English Translation:
The Gemara challenges: Here too, a flaw developed in the presumptive validity of slaughter, as the knife is notched. The Gemara explains: In the case of slaughter, the knife became flawed, but the animal did not become flawed. Therefore, the animal assumes the presumptive status of permissibility. By contrast, in the case of immersion, the interposition was found on the person, thereby nullifying his presumptive status of purity.
קלאוד על הדף:
The challenge: surely the discovery of the notched knife is also a re’uta in the validity of the shechita! The Gemara’s elegant answer carves out the conceptual heart of Rav Chisda’s position: סַכִּין אִיתְרְעַאי, בְּהֵמָה לָא אִיתְרְעַאי — “the knife became flawed, the animal did not.” The re’uta sits on the instrument, not on the subject of the chazaka (the animal). For the chatzitza-tevila case, the flaw is found ON THE PERSON, meaning the subject of the tumah-chazaka itself bears the flaw — a fundamentally different situation. The location of the re’uta determines whether the chazaka holds. This distinction will become foundational in later halacha for analyzing safek cases.
Key Terms:
- אִיתְרְעַאי = “became compromised” / “had a re’uta arise in it”
- The locus of the flaw — instrument vs. subject — is the operative distinction
Segment 13
TYPE: ברייתא
The displaced-windpipe baraita — a temporal-order question that frames the next challenge
Hebrew/Aramaic:
מֵיתִיבִי: שָׁחַט אֶת הַוֶּשֶׁט וְאַחַר כָּךְ נִשְׁמְטָה הַגַּרְגֶּרֶת – כְּשֵׁרָה, נִשְׁמְטָה הַגַּרְגֶּרֶת וְאַחַר כָּךְ שָׁחַט אֶת הַוֶּשֶׁט – פְּסוּלָה.
English Translation:
The Gemara raises an objection to the opinion of Rav Ḥisda from a baraita: The slaughter of a bird is valid with the cutting of one siman, the windpipe or the gullet. Therefore, if one cut the gullet, and the windpipe was displaced thereafter, the slaughter is valid. If the windpipe was displaced and one cut the gullet thereafter, the slaughter is not valid.
קלאוד על הדף:
A new objection from a baraita on bird-shechita. For a bird, severing one of the simanim suffices. If the gullet was cut first and the windpipe became displaced afterward, the shechita is valid. If the windpipe was displaced (which is itself a tereifa-defect) and only afterward the gullet was cut, the shechita is invalid — because the bird was already a tereifa before being slaughtered. This sets up the case in segment 14 where the order is uncertain.
Key Terms:
- וֶשֶׁט (veshet) = the gullet/esophagus
- גַּרְגֶּרֶת (gargeret) = the windpipe/trachea
- נִשְׁמְטָה = “became dislodged/displaced” — a defect that creates tereifa-status
Segment 14
TYPE: מעשה ופסיקה
The famous incident — when temporal order is unknown, every safek bishechita is pasul
Hebrew/Aramaic:
שָׁחַט אֶת הַוֶּשֶׁט (ונמצא) [וְנִמְצֵאת] הַגַּרְגֶּרֶת שְׁמוּטָה, וְאֵינוֹ יוֹדֵעַ אִם קוֹדֶם שְׁחִיטָה נִשְׁמְטָה אִם לְאַחַר שְׁחִיטָה נִשְׁמְטָה, זֶה הָיָה מַעֲשֶׂה, וְאָמְרוּ: כׇּל סְפֵק בִּשְׁחִיטָה פָּסוּל.
English Translation:
If one cut the gullet, and the windpipe was found displaced, and he does not know whether the windpipe was displaced before the slaughter or whether it was displaced after the slaughter; that was the incident that came before the Sages, and they said: In any case of uncertainty with regard to slaughter, the slaughter is not valid.
קלאוד על הדף:
The exact case study: gullet cut, windpipe found displaced, no way to tell when. The historical record states “this was the מעשה” — a real incident that came before the Sages — and they ruled: every safek בשחיטה is pasul. This generalizing rule “כָּל סְפֵק בִּשְׁחִיטָה פָּסוּל” sounds like it would directly oppose Rav Chisda. If a temporal safek invalidates shechita here, why not in the notched-knife case too?
Key Terms:
- כָּל סְפֵק בִּשְׁחִיטָה פָּסוּל = “every uncertainty in shechita is invalid” — the broad rule the Sages enacted
- זֶה הָיָה מַעֲשֶׂה = “this was an actual incident” — a phrase signaling halachic precedent
Segment 15
TYPE: דחיית הקושיא
Rejecting the apparent challenge to Rav Chisda — the “all” expands to ספק שהה ספק דרס, not the knife case
Hebrew/Aramaic:
כׇּל סָפֵק בִּשְׁחִיטָה לְאֵתוֹיֵי מַאי? לָאו לְאֵתוֹיֵי כְּהַאי גַוְונָא? לָא, לְאֵתוֹיֵי סָפֵק שָׁהָה, סָפֵק דָּרַס.
English Translation:
The Gemara asks: With regard to the expansive formulation: With regard to any case of uncertainty with regard to slaughter, what does it serve to add? Does it not serve to add a case like this one where there is uncertainty whether the knife was notched before or after the slaughter? The Gemara answers: No, it serves to add a case of uncertainty whether he interrupted the slaughter in the middle, or uncertainty whether he pressed the knife on the simanim. If he did either, it invalidates the slaughter.
קלאוד על הדף:
The Gemara turns the would-be objection into a clarification. Why is the rule phrased so broadly — כל ספק בשחיטה? What additional cases does it sweep in beyond the windpipe-displacement case? The answer rules out the notched-knife case and identifies others: ספק שהה / ספק דרס — uncertainty about whether the shochet paused (shehiya) or pressed (derasa) during the cut. These are perfect matches for the rule because, like the displaced windpipe, they involve flaws WITHIN the slaughter process / on the animal. The notched-knife case is structurally different — the flaw sits on the knife, not on the animal — so the broad rule does not include it. Rav Chisda is preserved.
Key Terms:
- לְאֵתוֹיֵי = “to include” — what additional cases the rule covers
- סָפֵק שָׁהָה / סָפֵק דָּרַס = uncertainty whether the shochet paused or pressed — defects in the slaughter act itself
Amud Bet (10b)
Segment 1
TYPE: ביאור החילוק
Sealing the distinction — flaw in the animal vs flaw in the knife
Hebrew/Aramaic:
וּמַאי שְׁנָא? הָתָם אִיתְיְלִידָא בַּהּ רֵיעוּתָא בִּבְהֵמָה, הָכָא סַכִּין אִיתְרְעַאי, בְּהֵמָה לָא אִיתְרְעַאי.
English Translation:
The Gemara asks: And in what way is uncertainty whether he interrupted the slaughter or pressed the knife different from uncertainty whether the knife became notched before or after the slaughter? The Gemara answers: There, in the case of uncertainty with regard to interruption or pressing, the flaw developed in the animal, and the slaughter is not valid. Here, in the case of uncertainty whether the knife became notched before or after the slaughter, a flaw developed in the knife but a flaw did not develop in the animal, and the slaughter is valid.
קלאוד על הדף:
Why exactly do ספק שהה and ספק דרס follow the strict “כל ספק בשחיטה פסול” rule, while the notched-knife case follows Rav Chisda’s leniency? Because in the former, the safek is about the slaughter act itself — the flaw, if real, sits on the animal (since shehiya and derasa happen during the cut to the animal’s throat). In the latter, the flaw resides only on the knife. Rav Chisda’s principle (סכין איתרעאי, בהמה לא איתרעאי) carves a precise category: re’uta on the instrument leaves the animal’s chazaka of “successfully slaughtered before you” intact.
Key Terms:
- רֵיעוּתָא בִּבְהֵמָה = re’uta in the animal — locating the flaw in the subject of the chazaka
- The principle now functions as a universal test: where does the flaw live?
Segment 2
TYPE: פסיקת הלכה
Halacha splits the difference — Rav Huna when no bones were broken, Rav Chisda when they were
Hebrew/Aramaic:
וְהִילְכְתָא כְּוָותֵיהּ דְּרַב הוּנָא, כְּשֶׁלֹּא שִׁיבֵּר בָּהּ עֶצֶם. וְהִילְכְתָא כְּוָותֵיהּ דְּרַב חִסְדָּא, כְּשֶׁשִּׁיבֵּר בָּהּ עֶצֶם. מִכְּלָל דְּרַב חִסְדָּא אַף עַל גַּב דְּלָא שִׁיבֵּר בָּהּ עֶצֶם? אֶלָּא בְּמַאי אִיפְּגִים? אֵימָא: בְּעֶצֶם דְּמַפְרֶקֶת אִיפְּגִים.
English Translation:
And the halakha is in accordance with the opinion of Rav Huna that the slaughter is not valid in a case where he did not break a bone with the knife. And the halakha is in accordance with the opinion of Rav Ḥisda that the slaughter is valid in a case where he broke a bone with the knife. Learn by inference that Rav Ḥisda rules that the slaughter is valid even if he did not break a bone with the knife. The Gemara asks: But if he did not break bones, on what was the knife notched? It must have been on the hide. Why, then, is the slaughter valid? The Gemara answers: Say that it was notched on the neck bone after he competed slaughtering the animal.
קלאוד על הדף:
The Gemara delivers a synthesis הלכתא: Rav Huna when no bones were broken, Rav Chisda when they were. The pragmatic compromise: with no plausible alternate cause for the notch, Rav Huna’s worry stands; with a definite alternate cause (the bones), Rav Chisda’s principle applies. But Rav Chisda himself is consistent — he allows kashrut even where no bones were broken, because the עֶצֶם דְּמַפְרֶקֶת (the neck-bone vertebra struck during the final stroke of shechita itself) is always available as a “definite cause.” This makes Rav Chisda systematically more lenient.
Key Terms:
- וְהִילְכְתָא = “and the halacha is” — the formula codifying authoritative practice
- עֶצֶם דְּמַפְרֶקֶת (etzem d’mafreket) = the neck-vertebra/spine — the bone always struck in shechita
Segment 3
TYPE: עובדא
Rav Yosef’s actual ruling — 13 animals declared tereifa after a notch was found
Hebrew/Aramaic:
הֲוָה עוֹבָדָא וְטָרַף רַב יוֹסֵף עַד תְּלֵיסַר חֵיוָתָא, כְּמַאן? כְּרַב הוּנָא, וַאֲפִילּוּ בְּקַמַּיְיתָא? לָא, כְּרַב חִסְדָּא, וּלְבַר מִקַּמַּיְיתָא.
English Translation:
The Gemara relates: There was an incident, and Rav Yosef deemed as many as thirteen animals tereifot when he discovered the knife was notched after slaughtering the final animal. The Gemara asks: In accordance with whose opinion did Rav Yosef issue his ruling? Is it in accordance with the opinion of Rav Huna, who holds that the concern is that the knife was notched by the animal’s hide, and he ruled that even the first animal is forbidden? The Gemara answers: No, perhaps it is in accordance with the opinion of Rav Ḥisda, who holds that the notch is attributed to the neck bone, and they are all forbidden except for the first animal.
קלאוד על הדף:
A real-world incident: Rav Yosef encountered a butcher who had slaughtered a long sequence of animals and only at the end discovered the knife was notched. He declared 13 of them tereifa. By whose opinion was this ruling? If by Rav Huna (notch-from-hide), even the first animal should be tereifa — but apparently 13, not all 14, were declared. So Rav Yosef must have ruled per Rav Chisda: the notch was put there by an earlier shechita’s neck-bone, and the only animal we can be sure preceded any notching is the very first one. So 13 are forbidden, the first is kosher.
Key Terms:
- טָרַף = “deemed it a tereifa” — the operative verb of the ruling
- תְּלֵיסַר חֵיוָתָא = thirteen animals (Aramaic for 13)
- קַמַּיְיתָא / בָּתְרָיְיתָא = the first / the last (animal in a sequence)
Segment 4
TYPE: ואיבעית אימא
Alternative reading — Rav Yosef ruled per Rav Huna; otherwise his 13/14 split makes no sense
Hebrew/Aramaic:
וְאִיבָּעֵית אֵימָא: לְעוֹלָם כְּרַב הוּנָא, דְּאִי כְּרַב חִסְדָּא, מִכְּדֵי מִתְלָא תָּלֵינַן, מִמַּאי דִּבְעֶצֶם דְּמַפְרֶקֶת דְּקַמַּיְיתָא אִיפְּגִים? דִּלְמָא בְּעֶצֶם דְּמַפְרֶקֶת דְּבָתְרָיְיתָא אִיפְּגִים!
English Translation:
And if you wish, say instead: Actually, it is in accordance with the opinion of Rav Huna, as, if it were in accordance with the opinion of Rav Ḥisda, since we attribute the notch to the neck bone as a leniency, from where is it ascertained that it is on the neck bone of the first animal that it was notched? Perhaps it is on the neck bone of the last animal that it was notched, and all of the animals are permitted.
קלאוד על הדף:
A second possible reading: Rav Yosef actually ruled per Rav Huna, and ALL 14 animals (including the first) should have been declared tereifa. The “13” may reflect transmission detail. Why? Because if Rav Yosef were following Rav Chisda, his attribution-logic would be too generous: if we are willing to attribute the notch to “some neck-bone in the sequence,” why pick the first one specifically? It could equally have been the last animal’s neck-bone, in which case ALL animals — including those slaughtered earlier — would be kosher. The Gemara is showing that the cleanest reading aligns Rav Yosef with Rav Huna’s stringency.
Key Terms:
- ואיבעית אימא = “and if you wish, say [alternatively]” — introducing a competing explanation
- מִתְלָא תָּלֵינַן = “we attribute as a leniency” — the Rav Chisda mechanism
Segment 5
TYPE: עובדא
Rav Kahana’s stringency — inspect the knife between every shechita
Hebrew/Aramaic:
אֲמַר לֵיהּ רַב אַחָא בְּרֵיהּ דְּרָבָא לְרַב אָשֵׁי: רַב כָּהֲנָא מַצְרֵיךְ בְּדִיקוּתָא בֵּין כֹּל חֲדָא וַחֲדָא. כְּמַאן? כְּרַב הוּנָא, וּלְמִיפְסַל קַמַּיְיתָא? לָא, כְּרַב חִסְדָּא, וּלְאַכְשׁוֹרֵי בָּתְרָיְיתָא.
English Translation:
Rav Aḥa, son of Rava, said to Rav Ashi: Rav Kahana requires an examination of the knife between each and every act of slaughter. The Gemara asks: In accordance with whose opinion did Rav Kahana issue his ruling? Is it in accordance with the opinion of Rav Huna, and he stated the halakha to invalidate the slaughter of the first animal that he slaughtered if he discovers a notch in the knife? The Gemara answers: No, perhaps it is in accordance with the opinion of Rav Ḥisda, according to the first of the two explanations of the ruling of Rav Yosef, who holds that if a notch is found it is attributed to the neck bone, and examination of the knife is required to validate the slaughter of the next animal.
קלאוד על הדף:
A second observed practice: Rav Kahana required a knife-inspection between every animal slaughtered. By whose opinion? Rav Aha bar Rava asks: per Rav Huna (who would invalidate the first animal regardless)? No — per Rav Chisda. Inspection between animals is precisely the mechanism that lets you preserve previous animals’ kashrut: if the knife is verified clean before the next slaughter, then a later notch must come from THAT later sequence, leaving the earlier animals safely kosher. This is the careful, halachically-aware way to apply Rav Chisda’s leniency in practice.
Key Terms:
- בְּדִיקוּתָא = an inspection (of the knife) — to verify smoothness
- בֵּין כֹּל חֲדָא וַחֲדָא = “between each and every one” — Rav Kahana’s between-animal inspection rule
Segment 6
TYPE: שקלא וטריא
Why doesn’t between-animal inspection require a chacham? — עד אחד נאמן באיסורין; the chacham-rule is only ceremonial
Hebrew/Aramaic:
אִי הָכִי, תִּיבְעֵי נָמֵי בְּדִיקַת חָכָם! עֵד אֶחָד נֶאֱמָן בְּאִיסּוּרִין. אִי הָכִי, מֵעִיקָּרָא נָמֵי לָא! הָאָמַר רַבִּי יוֹחָנָן: לֹא אָמְרוּ לְהַרְאוֹת סַכִּין לְחָכָם אֶלָּא מִפְּנֵי כְּבוֹדוֹ שֶׁל חָכָם.
English Translation:
The Gemara raises an objection: If so, and the reference is to the examination before slaughter, the knife should require the examination of a Torah scholar that was required by the Sages. The Gemara explains: There is no need for a Sage to examine the knife, based on the principle: The testimony of one witness, in this case the slaughterer, is deemed credible with regard to ritual matters. The Gemara challenges: If so, even from the outset, examination of the knife by a Torah scholar should also not be required. The Gemara explains: Didn’t Rabbi Yoḥanan say that the Sages said to show the knife to a Torah scholar only due to the requirement to show deference to the Sage? Once deference was shown before the initial slaughter, it is no longer necessary to do so.
קלאוד על הדף:
A natural follow-up: if knife-inspection is required between animals, does it require a chacham (as in pre-slaughter)? The answer applies a key principle: עֵד אֶחָד נֶאֱמָן בְּאִיסּוּרִין — a single witness is trusted in matters of issur. The shochet himself can verify the knife. Pushing further: why even require the chacham initially? R. Yochanan answers that the chacham-requirement is purely a matter of mipnei kevod ha-chacham — paying respect to the scholar — not a halachic requirement of evidence. After that initial deferential gesture, the shochet’s own inspection is sufficient. This passage is the foundational source for ne’emanut in matters of issur, and for the principle that some halachic requirements function for honor rather than legal weight.
Key Terms:
- עֵד אֶחָד נֶאֱמָן בְּאִיסּוּרִין = “one witness is trusted in matters of prohibition” — a foundational evidentiary principle
- מִפְּנֵי כְּבוֹדוֹ שֶׁל חָכָם = “due to the honor of the scholar” — a non-evidentiary, deference-based requirement
Segment 7
TYPE: שאלת מקור
The Gemara now asks for the biblical source of “אוקי מילתא אחזקיה”
Hebrew/Aramaic:
מְנַָא הָא מִלְּתָא דַאֲמוּר רַבָּנַן: אוֹקֵי מִילְּתָא אַחֶזְקֵיהּ?
English Translation:
§ Apropos the statement of Rav Huna that an animal during its lifetime exists with the presumptive status of prohibition, and therefore in cases of uncertainty whether the animal was properly slaughtered, one rules stringently and it is prohibited to eat its flesh, the Gemara asks: From where is this matter that the Sages said: Establish the status of the matter on the basis of its presumptive status, derived?
קלאוד על הדף:
The Gemara turns from applying chazaka to grounding it. אוֹקֵי מִילְּתָא אַחֶזְקֵיהּ — “leave the matter on its presumption” — has been operating throughout this entire sugya as a foundational tool. But where in the Torah does it come from? The next several segments will derive it from a verse in the laws of bayit menuga (a leprous house) — and the derivation will itself become a subject of dispute.
Key Terms:
- אוֹקֵי מִילְּתָא אַחֶזְקֵיהּ = “leave the matter on its chazaka” — the operative principle of presumption
- מְנָא הָא מִלְּתָא = “where do we know this from?” — a stock formula introducing a source-derivation
Segment 8
TYPE: דרשה ולימוד
Derivation from בית מנוגע — the priest exits before quarantining, so he can no longer see the mark
Hebrew/Aramaic:
אָמַר רַבִּי שְׁמוּאֵל בַּר נַחְמָנִי אָמַר רַבִּי יוֹנָתָן, אָמַר קְרָא ״וְיָצָא הַכֹּהֵן מִן הַבַּיִת אֶל פֶּתַח הַבָּיִת וְהִסְגִּיר אֶת הַבַּיִת שִׁבְעַת יָמִים״, דִּלְמָא אַדְּנָפֵיק וְאָתֵא בְּצַר לֵיהּ שִׁיעוּרָא! אֶלָּא לָאו מִשּׁוּם דְּאָמְרִינַן אוֹקֵי אַחֶזְקֵיהּ.
English Translation:
Rabbi Shmuel bar Naḥmani said that Rabbi Yonatan said that the verse states with regard to leprosy of houses that after a priest views a leprous mark: “And the priest shall emerge from the house to the entrance of the house, and quarantine the house seven days” (Leviticus 14:38). The Gemara asks: How can the priest quarantine the house based on his viewing the leprous mark? Perhaps as he was emerging and coming out of the house, the size of the leprous mark diminished and it lacks the requisite measure for leprosy. Rather, is it not due to the fact that we say: Establish the status of the matter on the basis of its presumptive status?
קלאוד על הדף:
R. Shmuel bar Nachmani in the name of R. Yonatan derives chazaka from the laws of leprous houses. The Torah commands the kohen to “go out from the house, to the entrance of the house, and shut up the house for seven days” (Vayikra 14:38). Notice: he must EXIT before declaring the quarantine. But by then he can no longer see the leprous mark — and what if it has shrunk in the interim and no longer has the requisite size? Yet the Torah authorizes the quarantine anyway. This must be because we say אוֹקֵי אַחֶזְקֵיהּ — leave the mark on its presumption of being the size it was when last seen. The verse becomes the textual root of all chazaka-reasoning.
Key Terms:
- בית מנוגע = a leprous house — the laws of tzara’at on a structure (Vayikra 14)
- בְּצַר לֵיהּ שִׁיעוּרָא = “its measure was diminished” — the worry that the mark may have shrunk below threshold
- אוֹקֵי אַחֶזְקֵיהּ = “establish on its chazaka” — the principle being grounded
Segment 9
TYPE: מתקיף
Rav Acha bar Yaakov challenges — perhaps the priest exited backward, keeping eyes on the mark
Hebrew/Aramaic:
מַתְקֵיף לַהּ רַב אַחָא בַּר יַעֲקֹב: וְדִילְמָא כְּגוֹן שֶׁיָּצָא דֶּרֶךְ אֲחוֹרָיו, דְּקָא חָזֵי לֵיהּ כִּי נָפֵק!
English Translation:
Rav Aḥa bar Ya’akov objects to that proof: And perhaps the verse is referring to a case where the priest emerged backward, as in that case, the priest sees the leprous mark as he emerges.
קלאוד על הדף:
Rav Acha bar Yaakov objects: maybe the verse describes a kohen exiting backward, eyes still fixed on the leprous mark. If so, there is no moment of unobserved time — he sees the spot continuously and can verify its size at the moment of declaration. The verse would then prove nothing about chazaka. The challenge is sharp: if a single alternative reading dissolves the gezera shava, the principle has no anchor. The next two segments will work to defeat this reinterpretation.
Key Terms:
- מַתְקֵיף לַהּ = “raises a challenge against it” — a stock phrase introducing a refutation
- דֶּרֶךְ אֲחוֹרָיו = “by way of his back” — exiting while facing inward, walking backward
Segment 10
TYPE: שתי תשובות
Abaye answers Rav Acha bar Yaakov with two refutations
Hebrew/Aramaic:
אֲמַר לֵיהּ אַבָּיֵי: שְׁתֵּי תְּשׁוּבוֹת בַּדָּבָר, חֲדָא, דִּיצִיאָה דֶּרֶךְ אֲחוֹרָיו לֹא שְׁמָהּ יְצִיאָה, וְעוֹד, אֲחוֹרֵי הַדֶּלֶת מַאי אִיכָּא לְמֵימַר? וְכִי תֵּימָא דְּפָתַח בֵּיהּ כַּוְּותָא – וְהָתְנַן: בַּיִת אָפֵל אֵין פּוֹתְחִין בּוֹ חַלּוֹנוֹת לִרְאוֹת אֶת נִגְעוֹ!
English Translation:
Abaye said to him that there are two refutations of that statement. One is that emerging backward is not called emerging, and the priest would not fulfill the verse “And the priest shall emerge from the house” by doing so. And furthermore, in a case where the leprous mark is behind the door, what is there to say? Even walking backward would not enable the priest to see it. And if you would say that the priest can open a window in the wall to enable him to see the leprous mark, but didn’t we learn in a mishna (Nega’im 2:3): In a dark house one may not open windows to enable him to see his leprous mark?
קלאוד על הדף:
Abaye gives two answers. First: walking out backward isn’t really “exiting” — the verse יציאה implies normal forward motion. Second, even granting backward exit: what about cases where the mark is behind the door, where backward-walking still wouldn’t keep it in view? You can’t propose opening a new window for visibility, because Mishna Nega’im 2:3 explicitly forbids opening windows in a dark house just to view a leprous mark. So in some real cases, the kohen MUST quarantine without final visual confirmation — meaning chazaka is genuinely operating, and Rav Yonatan’s proof stands.
Key Terms:
- שְׁתֵּי תְּשׁוּבוֹת = “two refutations” — the formula introducing a paired counter-argument
- בַּיִת אָפֵל = a dark house — where artificial visibility is forbidden by halacha
Segment 11
TYPE: דחיית שתי התשובות
Rava deflects both of Abaye’s answers, restoring Rav Acha bar Yaakov’s challenge
Hebrew/Aramaic:
אֲמַר לֵיהּ רָבָא: דְּקָאָמְרַתְּ יְצִיאָה דֶּרֶךְ אֲחוֹרָיו לֹא שְׁמָהּ יְצִיאָה – כֹּהֵן גָּדוֹל בְּיוֹם הַכִּפּוּרִים יוֹכִיחַ, דִּכְתִיב בֵּיהּ יְצִיאָה, וּתְנַן: יָצָא וּבָא לוֹ דֶּרֶךְ כְּנִיסָתוֹ. וּדְקָאָמְרַתְּ בַּיִת אָפֵל אֵין פּוֹתְחִין בּוֹ חַלּוֹנוֹת לִרְאוֹת אֶת נִגְעוֹ – הָנֵי מִילֵּי הֵיכָא דְּלָא אִיתַּחְזַק, אֲבָל הֵיכָא דְּאִיתַּחְזַק – אִיתַּחְזַק.
English Translation:
Rava said to Abaye: With regard to that which you say: Emerging backward is not called emerging, the case of the High Priest on Yom Kippur will prove that this is not so, as emerging is written in his regard (see Leviticus 16:18), and we learned in a mishna (Yoma 52b): The High Priest emerged and came out backward in the manner of his entry, facing the Ark in the Holy of Holies. And with regard to that which you say: In a dark house, one may not open windows to enable him to see his leprous mark, this statement applies only in a case where the existence of a leprous mark in the house was not yet established; but in a case where the existence of a leprous mark in the house was already established, it was established, and the priest may open a window to view it.
קלאוד על הדף:
Rava counters both refutations. (1) “Backward exit isn’t exit”: refuted by the Kohen Gadol on Yom Kippur — the Mishna in Yoma describes him backing out of the Holy of Holies, and the Torah uses the verb יציאה for that motion. So יציאה does include backward egress, and the kohen-with-nega could keep his eyes on the mark. (2) “Dark house — can’t open windows”: that prohibition only applies BEFORE the mark has been established. Once it has been seen and confirmed (אִיתַּחְזַק), he MAY open windows for re-inspection. So neither of Abaye’s refutations holds, and Rav Acha bar Yaakov’s challenge stands.
Key Terms:
- כֹּהֵן גָּדוֹל בְּיוֹם הַכִּפּוּרִים יוֹכִיחַ = “the Kohen Gadol on Yom Kippur will prove it” — the formula citing a precedent
- אִיתַּחְזַק = “it has been established” — having an existing chazaka changes the rules
Segment 12
TYPE: ברייתא
A baraita not aligned with Rav Acha bar Yaakov — first stage: the priest must go to the entrance, not home
Hebrew/Aramaic:
תַּנְיָא דְּלָא כְּרַב אַחָא בַּר יַעֲקֹב, ״וְיָצָא הַכֹּהֵן מִן הַבַּיִת״ – יָכוֹל יֵלֵךְ לְתוֹךְ בֵּיתוֹ וְיַסְגִּיר? תַּלְמוּד לוֹמַר: ״אֶל פֶּתַח הַבָּיִת״.
English Translation:
It is taught in a baraita not in accordance with the opinion of Rav Aḥa bar Ya’akov, who suggested that the verse is referring to a case where the priest emerged from the house backward and therefore there is no proof that one lets the matter remain in its presumptive status. It is written: “And the priest shall emerge from the house to the entrance of the house and quarantine the house.” One might have thought that he may go into his own house and quarantine the house from there; therefore, the verse states: “To the entrance of the house,” referring to the house that is being quarantined.
קלאוד על הדף:
The Gemara now cites a baraita that systematically refutes Rav Acha bar Yaakov by sequencing the verse’s clauses. The first move: “ויצא הכהן מן הבית” (and the priest shall emerge from the house) — one might have thought he can go all the way home and declare the quarantine remotely. Rejected by the next clause: “אל פתח הבית” — to THE entrance of THE house, namely the leprous house. So he must remain at its threshold, not depart entirely.
Key Terms:
- תַּנְיָא דְּלָא כְּ… = “it is taught in a baraita not according to…” — formula introducing a tannaitic refutation
- פֶּתַח הַבָּיִת = the entrance of the (leprous) house
Segment 13
TYPE: ברייתא — שלב שני
Second stage of the derivation — he must be fully outside the house, beside the lintel
Hebrew/Aramaic:
אִי ״פֶּתַח הַבָּיִת״, יָכוֹל יַעֲמוֹד תַּחַת הַמַּשְׁקוֹף וְיַסְגִּיר? תַּלְמוּד לוֹמַר: ״מִן הַבַּיִת״ – עַד שֶׁיֵּצֵא מִן הַבַּיִת כּוּלּוֹ. הָא כֵּיצַד? עוֹמֵד בְּצַד הַמַּשְׁקוֹף וּמַסְגִּיר.
English Translation:
If he must emerge to the entrance of the house, one might have thought that he may stand beneath the lintel and quarantine the house; therefore, the verse states: “From the house,” indicating that he does not quarantine the house until he emerges from the house in its entirety. How so? He stands alongside the lintel and quarantines the house.
קלאוד על הדף:
A second move: maybe he can stand under the lintel itself? No — the verse says “from the house,” requiring full exit. The synthesis: he stands BESIDE the lintel (outside, but right at the doorway). Each clause of the verse contributes a halachic detail. This precise positioning rules out Rav Acha bar Yaakov’s “backward-exit-with-eyes-on-mark” reading: standing beside the lintel does not face into the room, so the kohen cannot see the mark from this declaration-position.
Key Terms:
- מַשְׁקוֹף (mashkof) = the lintel/upper doorframe
- בְּצַד הַמַּשְׁקוֹף = “beside the lintel” — the precise required position
Segment 14
TYPE: ברייתא — בדיעבד
The clinching stage — even if the priest declared quarantine improperly (from his own house, or inside), it stands
Hebrew/Aramaic:
וּמִנַּיִן שֶׁאִם הָלַךְ לְתוֹךְ בֵּיתוֹ וְהִסְגִּיר, אוֹ שֶׁעָמַד בְּתוֹךְ הַבַּיִת וְהִסְגִּיר, שֶׁהֶסְגֵּרוֹ מוּסְגָּר? תַּלְמוּד לוֹמַר: ״וְהִסְגִּיר אֶת הַבַּיִת״, מִכׇּל מָקוֹם.
English Translation:
The baraita concludes: And from where is it derived that if he went inside his own house and quarantined the leprous house, or that if he stood inside the leprous house and quarantined it, that his quarantine is a valid quarantine? It is derived from that which the verse states: “And quarantine the house,” meaning in any case. Apparently, the quarantine is valid even if he is unable to see the leprous mark, as the mark remains in its previous presumptive status.
קלאוד על הדף:
The baraita’s final move is the clinching proof. Even if the kohen violated the prescribed positioning — declared the quarantine from inside his own home, or while still inside the leprous house — the quarantine takes effect בדיעבד. The verse “וְהִסְגִּיר אֶת הַבַּיִת” applies מִכׇּל מָקוֹם — from anywhere. This means the kohen’s bedi’avad declarations, made when he definitionally cannot see the mark (e.g., from a remote location), are still valid. So chazaka MUST be operating: the mark’s status is presumed unchanged from the last viewing. R. Yonatan’s source-derivation is fully grounded.
Key Terms:
- בְּדִיעֲבַד = “after the fact” — the secondary halachic mode in which a non-ideal action still counts
- מִכׇּל מָקוֹם = “from any place” — the all-inclusive force of the verb
Segment 15
TYPE: פתיחת תירוץ
The cliffhanger — Rav Acha bar Yaakov’s reinterpretation begins, to continue on Daf 11
Hebrew/Aramaic:
וְרַב אַחָא בַּר יַעֲקֹב,
English Translation:
And Rav Aḥa bar Ya’akov interprets the baraita in accordance with his opinion
קלאוד על הדף:
The amud breaks here mid-sentence as the Gemara begins to record how Rav Acha bar Yaakov would respond to the baraita that seemingly refuted him. He will offer a reinterpretation that preserves his position despite the bedi’avad ruling — but the explanation will only be given on Daf 11. The unresolved hanging clause functions almost as a built-in cliffhanger, leaving the reader to anticipate the next day’s learning.
Key Terms:
- וְרַב אַחָא בַּר יַעֲקֹב = “and Rav Acha bar Yaakov [will explain]…” — the mid-sentence break
- The full dialectic continues on Daf 11a