More Discussions for this daf
1. Eggs inside a chicken on Yom Tov 2. Tosfos 3. Nolad as Muktzah
4. Muktzah & Tevel 5. Tosfos DH u'Beis Hillel, Tosfos DH Gabei 6. Hachana d'Rabah
7. Eruv Tavshilin 8. Eruv Tavshilin for Gebrochts 9. Beit Shamai's Chidush
10. Hachanah from Shabbos for a weekday 11. Hachanah by cooking and baking 12. The Heter to use a broken utensil
13. Introduction to Muktzah 14. Beis Hillel/Beis Shamai 15. Addition to Insight
16. Possible mistake 17. Hachanah d'Rabah 18. ביצה שנולדה ביו"ט

Randy Lazarus asked:

(a) According to Rabah, egg laid on Shabbos was prepared yesterday, Yom Tov. If you sheckt the chicken yesterday (Yom Tov) and find an egg inside, you can eat it. Yet, we learned that it was prepared for the next day, Shabbos. Shouldn't it be assur.

(b) Furthermore, shouldn't there be a gazeira not to eat such an egg, for when Shabbos falls AFTER YOM TOV?

Randy Lazarus

The Kollel replies:


(a) There is nothing wrong with an egg that will be prepared for Shabbos,

before Shabbos starts. It is only if the egg was prepared on Yom Tov for

Shabbos, and it is not Shabbos, that it may not be eaten.

(b) This question is more difficult, but the Gemara itself addresses it. It

answers that the Rabanan generally do not apply Gezeros to situations which

only arise infrequently. It is uncommon, apparently, to eat eggs found

inside of a slaughtered hen (perhaps they are slaughtered, like today, only

after they stop producing). Therefore the Gezerah you proposed was not


What you may be still wondering about, though, is why that permits the egg

if it happens to be found in a hen slaughtered on Yom Tov which follows a

Shabbos . In such a situation, a Gezerah should not be needed to prohibit

the egg. It should be prohibited d'Oraisa, since there is at least a

possibility that it was formed on the previous day (on Shabbos) for Yom Tov,

and would have been laid today had the hen not been slaughtered. That should

be considered Hachanah. This is a very good question, and we cite a number

of answers given to it by the Rishonim in our Insights to the Daf, which I

shall copy here for your benefit.

Best wishes, Mordecai




brought to you by Kollel Iyun Hadaf of Yerushalayim,



QUESTION: The Gemara asks that eggs found inside a hen that was slaughtered

on Yom Tov should be Asur because of a Gezeirah of eggs that were laid on

Yom Tov (which, Rashi explains, refers to Yom Tov that falls right after

Shabbos). These eggs, though, should be Asur for a different reason -- they

are a Safek Isur! That is, there is a doubt whether the eggs that were

extracted from the slaughtered hen were completed the day before, on Shabbos

(in which case they are Asur because of "Hachanah d'Rabah"), or today, on

Yom Tov (in which case they would be permitted according to most Rishonim,

see above, 4:c)!


(a) TOSFOS (DH Milsa) explains that the problem of Hachanah, of being

prepared on Shabbos for Yom Tov, occurs only retroactively, after the egg is

laid. The RAMBAN (Milchamos) explains that this is because it is only at the

moment it is laid, that one benefits from the completion of the egg that

occurred the day before (on Shabbos), for now it becomes possible to eat the

egg without slaughtering the mother. While the egg is still in the mother,

one has gained nothing from its completion. The Rishonim (RA'AVAD and

others) cite the Yerushalmi that presents a different reason why the egg's

completion becomes useful only retroactively, after it is laid. After it is

laid is when it is able to develop into a chick. Alternatively, that is when

it begins to taste good. Before it is laid, the fact that it has been

completed does not make a difference and thus it is not called "Hachanah" on

Shabbos for Yom Tov..

(b) The RA'AVAD, explaining the opinion of RABEINU EFRAIM, says that an egg

that is completed the previous day is laid immediately in the morning. If it

is already later in the day when the egg is removed from the slaughtered

hen, it is clear that it was not completed the day before, but today, and it

is therefore permitted.

(c) RABEINU EFRAIM, as cited by the Ba'al ha'Me'or, indeed says that eggs

found inside a hen are Asur because of a Safek that they might have been

completed the day before. The way the Ra'avad (above, (b)) understands

Rabeinu Efraim, he is only referring to eggs found in a hen slaughtered at

night. However, it could be that Rabeinu Efraim is talking about eggs from a

hen that was slaughtered even during the day, and he learns our Sugya

differently. Instead of discussing a Yom Tov that falls right after Shabbos,

the Gemara is discussing a regular Yom Tov that does not follow Shabbos.

When the Gemara says that these eggs should be Asur because of a Gezeirah of

eggs laid on Yom Tov, it does not mean a Gezeirah of other eggs laid on

Yom Tov, but it means a Gezeirah that perhaps these eggs themselves were

going to be laid today, and thus they should be included in the normal

Gezeirah of eggs laid on Yom Tov! The Gemara answers that the Rabanan did

not enact such a Gezeirah because it is uncommon to eat eggs found inside

the hen. But if a hen is slaughtered on a Yom Tov which follows a Shabbos,

the eggs would certainly be prohibited mid'Oraisa.


Mordecai Kornfeld | |Tel(IL):02-652-2633

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