(Mishnah): If he swore 'I will not eat' and he ate things unfit to eat or drank liquids unfit to drink, he is exempt.

If he swore 'I will not eat', and he ate Neveilos, Treifos, rodents or insects, he is liable;

R. Shimon exempts him.

If one said 'Konam, my wife may not benefit from me if I ate today' and he ate Neveilos, Treifos, rodents or insects, his wife is forbidden.

(Gemara) Question: [Reish Lakish holds that SHEVUOS take effect on Isurim only if he explicitly forbade Chetzi Shi'ur. If Rabanan discuss this,] why does R. Shimon exempt?

Answer: R. Shimon teaches like he taught elsewhere;

(Mishnah): How much Tevel must one eat to be liable? R. Shimon says, any amount. Chachamim say, a k'Zayis. (Since R. Shimon holds that one is liable for Chetzi Shi'ur even without a Shevu'ah, even if he specifies Chetzi Shi'ur, the Shevu'ah does not take effect.)

R. Shimon (to Chachamim): Don't you agree that if one eats an ant of any size, he is liable?

Chachamim: That is because it is [intact] like it was created.

R. Shimon: Also one wheat [kernel] is like it was created!

Question: According to R. Yochanan [Chachamim obligate because he was Kolel], why does R. Shimon exempt?

Answer (Ze'irah): R. Shimon teaches like he taught elsewhere;

It was taught in the name of R. Shimon "Te'anu Es Nafshoseichem" - [afflict yourselves] from what is permitted to you, and not from what is forbidden to you. (Even Yom Kipur, which has Kares, and is Kolel Heter, does not take effect on Isurim. All the more so Shevu'ah does not take effect on Isurim even if it is Kolel!)

Question (R. Ba bar Mamal): (Kerisus 3:4 teaches that for one Achilah, one can be liable four Chata'os and an Asham.) According to R. Yochanan, who says that through Kolel, SHEVUOS effect on Isurim, it should teach [a fifth Chatas -] Shevu'ah "I will not eat", and he ate!

Answer #1 (R. Zeira): All the days of R. Ba bar Mamal, we did not find an answer, and after he died, we found an answer! What is the case?

If he said "Shevu'ah, I will not eat meat the entire year", and Pesach is included, or "I will not eat these 10 days", and Yom Kipur is included, does Shevu'ah take effect on Isurim?!

Inference (R. Yosi): We learn from this that if there were k'Zeisim of Shechutah and one of Neveilah, and he swore "I will eat these 10 k'Zeisim", since he is exempt for the Neveilah, he is exempt for the rest.

Question (R. Bun bar Chiyah): Why didn't he say that [we can find a fifth Chatas, e.g.] he swore not to eat what Ploni slaughtered?

Answer #1: Is there no Chelev [in what he slaughtered?! Since the Chelev is already forbidden, the Shevu'ah does not take effect.]

Question: If he slaughters deer [or any other Chayah, there is no Isur Chelev]!

Answer #1: Is there no Gid ha'Nasheh [in what he slaughtered?! Since the Gid is already forbidden...]

Question: Birds [have no Isur of Chelev or Gid ha'Nasheh]!

Answer #1: Is there no [Isur of] blood in them?!

Question (R. Chinenah): Why didn't he say "Shevu'ah, I will not eat from Ploni's [property] Stam"?

Answer #1: It is due to R. Shimon. (We want to teach what all agree to. R. Shimon does not obligate for Kolel.)

Objection: If it is even like R. Shimon, can it teach that [one of the Chata'os is for] Yom Kipur? R. Shimon taught "Te'anu Es Nafshoseichem" - [this forbids] what is permitted to him, and not what is forbidden to him!

Answer #2 (to R. Ba bar Mamal's question, and those after it): This (the Mishnah teaches Chata'os) Kavu'os. This (the Korban for Shevu'as Bituy) is Oleh v'Yored.

Objection: [Among the four is] Tum'as Mikdash v'Kodoshav (a Tamei who ate Kodesh), for which one brings Oleh v'Yored, and the Tana taught it!

Answer #3 (to these questions): He teaches only Chiyuvei Kares. There is no Kares for Shevu'ah.

Objection: Me'ilah does not have Kares, and the Tana taught [an Asham for Me'ilah]!

Answer #4 (to these questions): He teaches only matters that have no Heter after they are forbidden. SHEVUOS have a Heter after their Isur (one can ask a Chacham to permit them).

Inference: (In the Mishnah, R. Meir says that if it was Shabbos and he was Motzi the food while eating it, he is liable another Chatas. He did not say that he is liable another two, for Hotza'ah on Shabbos and on Yom Kipur.) This teaches that there are not [39] Avos Melachos on Yom Kipur! (Hotza'ah is an inferior Melachah. It is forbidden only on Shabbos.)

Objection: If one did all the Melachos in one Helam, he is liable only once for all of them! (Also here, even if one is liable for Hotza'ah on Yom Kipur, he is liable only once for Shabbos and Yom Kipur!)

Answer: (The inference was not from that he is liable only once. Rather, if one is liable for Hotza'ah on Yom Kipur, why did R. Meir need to mention Shabbos?) If one did each Melachah by itself, is he not liable for each?! (We explained this like HAGAHOS R. DINAR. Seemingly, one could say that one is liable for Hotza'ah on Yom Kipur. R. Meir mentioned Shabbos to teach that even if it is also Shabbos, he is liable only once for Hotza'ah! - PF)

According to R. Yochanan [who says that SHEVUOS take effect on Isurim through Kolel], one who swore "I will not eat Matzah" is forbidden to eat Matzah on Pesach night;

If he swore "I will not eat Matzah on Pesach night", he is lashed [for Shevu'as Shav (a vain oath, for it does not take effect) and he eats Matzah.

One who swore "I will not sit in shade", he is forbidden to sit in shade of a Sukah. If he swore "I will not sit in shade of a Sukah", he is lashed and sits in shade of a Sukah.

(R. Shimon exempts in our Mishnah, for he holds that eating Isurim is not called Achilah, and that SHEVUOS do not take effect on Isurim even through Kolel.) This is not only Stam, rather, even if he specified [the Isur]. This is not only Poret (he forbade specifically the Isur), rather, even if he was Kolel. This is not only for the future, rather, even for the past;

This is not only like Rabanan, rather, even like R. Akiva [who says that a Shevu'ah forbids Chetzi Shi'ur. Since R. Shimon lashes for Chetzi Shi'ur, SHEVUOS do not take effect on it.] This is not only Neveilos and Tereifos [which are forbidden], rather, even earth [is not called eating, if he said Stam "I will not eat." We explained this like R. MEIR SIMCHAH.]