A mishnah on today’s daf lists actions that can invalidate a slaughter, including:
If the knife fell and he lifted it (and then completed the slaughter), or if his garments fell and he lifted them (and then completed the slaughter), or if he had honed the knife and grew weary before completing the slaughter and another came and slaughtered the animal, if he interrupted the slaughter for an interval equivalent to the duration of an act of slaughter, the slaughter is not valid.
Kosher slaughter requires the shochet, kosher slaughterer, to sever the animal’s simanim (trachea and esophagus), ideally in one swift, uninterrupted motion. The Talmud also acknowledges that it sometimes takes a back-and-forth motion or even several — but these movements should be relatively continuous. An interruption to this process is not ideal. The mishnah imagines several reasons for a break in the action: a dropped knife, a wardrobe malfunction, muscle fatigue. In all these cases, the mishnah rules that the slaughter is not valid.
How long of a hesitation or break is too long, the Gemara wonders? Is this a talmudic example of the so-called “five second rule” that has saved countless pieces of candy from the trash, or something else?
What is the meaning of an interval equivalent to the duration of an act of slaughter? Rav said: It means an interval equivalent to the duration of an act of slaughter of another animal (not the duration required to complete the act of slaughter that was interrupted).
According to Rav, an interruption equivalent to the time it takes to slaughter another animal invalidates the slaughter of the first one. If the time it takes the shochet to pick the knife up from the floor or pull up his garment is shorter than that, the slaughter can continue and is deemed valid.
This isn’t the last word, of course. Rav Kahana and Rav
Asi ask a clarifying question:
Rav Kahana and Rav Asi said to Rav: Is the duration equivalent to that of an act of slaughter of another animal for an animal, and of another bird for a bird? Or perhaps it is equivalent to the slaughter of an animal even for a bird?
This is a fair question: Is the disqualifying time of interruption linked directly to the type of slaughter? Or do all slaughters get the same grace period, for example, the time it takes to slaughter a cow?
Rav said to them: I did not feel sufficiently intimate with my beloved uncle such that I could ask him.
Rav’s uncle was Rabbi Hiyya, with whom Rav studied these laws. But, despite referring to him as habibi, “beloved,” Rav was too shy to ask him a question in class! Therefore, he did not learn the material that he is now being asked to review with his own colleagues, Rav Kahana and Rav Asi. In his commentary on this passage, Rabbi Adin Steinsaltz notes that despite having a close familial relationship, Rabbi Hiyya was not warm or open, so Rav was intimidated by him.
Without a definitive answer from Rav, the discussion continues by exploring several opinions concerning the length of a disqualifying interruption. Maimonides (Mishneh Torah, Ritual Slaughter 3:2) notes that the halakhah is “If the shochet waited the amount of time it would take to lift up the animal, cause it to lie down, and slaughter it, his slaughter is not acceptable. If he waited less than this amount of time, his slaughter is acceptable.” Picturing the action, it seems that this amount of time provides a relatively generous grace period to the hapless shochet.
Returning to Rav and Rabbi Hiyya, I can’t help but wonder if the reason the Gemara included this short aside is in order to provide another point against hesitation. Just as the shochet who hesitates too long invalidates a kosher slaughter, a student who hesitates in asking a question is similarly bereft of the knowledge they need. Not so subtly, the Gemara adjures us to keep asking questions. While we might hesitate to speak up around those with vast knowledge or experience, we must not let intimidation cost us the chance to learn.
Read all of Chullin 32 on Sefaria.
This piece originally appeared in a My Jewish Learning Daf Yomi email newsletter sent on June 1, 2026. If you are interested in receiving the newsletter, sign up here.
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