There are in the Torah thirty-six [transgressions which are punishable with] karet:When one has intercourse with his mother, His father's wife; Or his daughter-in-law; When a man has intercourse with a male, Or with a beast, Or when a woman brings a beast upon herself; When one has intercourse with a woman and her daughter; Or with a married woman; Or with his sister; Or with his father's sister; Or his mother's sister; Or his wife's sister; Or his brother's wife; Or the wife of his father's brother; Or with a menstruating woman; One who blasphemes [the Lord]; One who worships idols; Or dedicates his children to Molech; Or has a ba’al ov; Or desecrates the Shabbat; When an unclean person eats of sacred food; Or when one enters the precincts of the Temple in an unclean state; When one eats forbidden fat, Or blood; Notar; Or piggul; When one slaughters Or offers up [a consecrated animal] outside [the Temple]; One who eats anything leavened on Pesah; One who eats Or works on Yom Kippur; One who compounds the oil [of anointing]; Or compounds incense; Or uses [unlawfully] oil of anointing; And [when one transgresses the laws of] the pesah, And circumcision from among positive commandments.

For these [transgressions] one is liable to karet if committed intentionally, and if committed unwittingly to a hatat. If there is a doubt whether he had committed the transgression to an asham talui, except in the case of one who defiled the Temple or its consecrated things, for in that case one is liable in this case to a sliding-scale sacrifice, the words of Rabbi Meir. But the sages say: also the blasphemer [is an exception], as it says: “You shall have one law for one that acts in error” (Numbers 15:29), this excludes the blasphemer who performs no action.

Some women [after childbirth] bring an offering which is eaten; some bring one which is not eaten, and some bring no offering at all. These bring an offering which is eaten: If a woman miscarries a fetus which has the shape of beast, or a wild animal or a bird, the words of Rabbi Meir; but the sages say: only if it has a human shape. Or if a woman miscarries a sandal-like fetus or a placenta or a fully formed fetus, or one that comes out in pieces. Similarly, if a female slave miscarries, she brings an offering which is eaten.

The following bring an offering which is not eaten:A woman who miscarries but does not know what the miscarriage was, Or if two women who have a miscarriage, one of a kind which did not render her liable [to an offering], and the other of a kind that does render her liable [to an offering]. Rabbi Yose said: When is this so? This applies only if one went towards the east and the other towards the west, but if both remained together they bring [together] one offering which is eaten.

The following do not bring a sacrifice:A woman who discharges a sac filled with water or with blood or with pieces of flesh; Or if the miscarriage was in the shape of fish, locust, unclean animals or reptiles; Or if the miscarriage took place on the fortieth day [after the conception], Or if it was extracted by means of a caesarean section. Rabbi Shimon declares her liable [to an offering] in the case of a caesarean section.

If a woman miscarries on the eve of the eighty-first day: Bet Shammai say: she is exempted from an offering. But Bet Hillel say: she is liable. Bet Hillel said to Bet Shammai: what is the difference between the eve of the eighty-first day and the eighty-first day itself? Since these are considered equal with regard to [blood] uncleanness, why should they not be considered equal also with reference to the offerings? Bet Shammai said to them: No; if you said this in the case where she miscarries on the eighty-first day where it occurred at a time when she was fit to bring an offering, can you say this where she miscarries on the eve of the eighty-first day, where it did not occur at a time when she was fit to bring an offering? Bet Hillel said to them: the case of a woman who miscarries on the eighty-first day which fell on a Shabbat shall prove it, where it did not take place at a time when she was fit to bring an offering and yet she is liable to bring a [new] offering. Bet Shammai said to them: No; if you says this of the eighty-first day which fell on a Shabbat for although it is not fit for offerings of an individual, it is at least fit for communal offerings, would you maintain this concerning a woman who miscarries on the eve of the eighty-first day, seeing that the night is fit neither for offerings of the individual nor for communal offerings? As to [your argument of the uncleanness of] the blood, it proves nothing, for if she aborted within the period of cleanness the blood is unclean, and yet she is exempted from an offering.