Study Yevamot folio 49A with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
Mishnah: Which offspring of forbidden sex have the status of a mamzer? It is the offspring of a union with any next of kin that is subject to a Torah prohibition that he should not have sex with them; this is the statement of R' Akiva. Shimon HaTimni says: It is the offspring of a union with any
R' Shimon ben Azzai said: I found a scroll recording people’s lineages in Jerusalem, and it was written in it that so-and-so is a mamzer from an adulterous union with a married woman, a sin punishable by court-imposed capital punishment. The only reason for the scroll to state the reason that this
The Mishnah delineates the circumstances in which it is prohibited to engage in sex with the sister of one’s wife and the sister of one’s yevama: If a man’s wife died, he is permitted to her sister. If he divorced her and then she died, he is permitted to her sister. If he divorced his wife and th
Talmud: What is R' Akiva’s reasoning? As it is written: “A man shall not take his father’s wife, and he shall not uncover his father’s cloak” (Deuteronomy 23:1). This teaches that a cloak that his father saw, i.e., a woman with whom his father had sex, the son may not uncover.
And in this interpretation of the verse, R' Akiva holds in accordance with the opinion of R' Yehuda, who said: The verse states only that such sex are forbidden, but they would not render him liable to receive karet; perforce the verse speaks of a woman raped by one’s father, since she is one of t