[If a man says:] “I betrothed your daughter,” and she says: “You betrothed me,” he is forbidden to [marry] the relatives of the younger, and the younger is permitted to [marry] his relatives; he is permitted to [marry] the relatives of the elder, and the elder is forbidden to [marry] his relatives.

In every case in which there is kiddushin and there is no transgression, the offspring follows the male. Which is this? [This is] the daughter of a Kohen, a Levi, or a Yisrael who was married to a Kohen, a Levi, or a Yisrael.  In every case in which there is kiddushin and there is transgression, the offspring follows the defective one. Which is this? [This is] a widow to a Kohen Gadol, a divorcee or a chalutzah to an ordinary Kohen, a mamzeres or a Nesinite to a regular Jew, [or] the daughter of a regular Jew to a mamzer or a Nesinite.  [In a case of] anyone who cannot have kiddushin with him but can have kiddushin with others, the offspring is a mamzer. Which is this? [This is] one who has relations with any of the arayos which are in the Torah.  [In a case of] anyone who cannot have kiddushin with him or with others, the offspring is like her. Which is this? [This is] the offspring of a slave and a gentile woman.

R’ Tarfon says: Mamzerim can be purified. How? [If] a mamzer married a slave, the offspring is a slave; [if] he freed him, the son becomes a freeman. R’ Eliezer says: This is a slave who is a mamzer.

Ten genealogical classes went up from Babylon: Kohanim, Leviim, Yisraelim, chalalim, proselytes, freedmen, mamzerim, Nesinites, shesukim, and foundlings. Kohanim, Leviim, and Yisraelim may intermarry; Leviim, Yisraelim, chalalim, proselytes, and freedmen may intermarry; proselytes, freedmen, mamzerim, Nesinites, shesukim, and foundlings may all intermarry.

These are shesukim: Anyone who recognizes his mother, but does not recognize his father; foundlings: Anyone who was taken in from the street and does not recognize his father or his mother. Abba Shaul called shesukim: bedukim.

All who are prohibited to enter into the Congregation are allowed to intermarry with each other; R’ Yehudah prohibits [it]. R’ Eliezer says: Those who are definite[ly unfit] with those who are definite[ly unfit] is permitted. Those who are definite[ly unfit] with those who[se status is doubtful, those who[se status] is doubtful with those who are definite[ly unfit], and those who[se status] is doubtful with those who[se status] is doubtful are prohibited. Those who[se status] is doubtful are: a shesuki, a foundling, and a Cuthean.

One who marries the daughter of a Kohen must investigate her through four mothers who are eight; her mother, her mother’s mother, her mother’s father’s mother and her mother, her father’s mother and her mother, and her father’s father’s mother and her mother.  [If she is] the daughter of a Levi or a Yisrael, one more is added to them.

From the Altar and upward is not investigated, nor from the Platform and upward, nor from the Sanhedrin and upward.  Anyone whose ancestors were known to have been from the public officials or from the charity collectors may marry off [their daughters] to a Kohen, and it is not necessary to investigate their descent. R’ Yose says: Also one who is signed as a witness in the court of Yeshanah near Sephoris. R’ Chanina ben Antignos says: Also one who is listed in the king’s army.

The daughter of a male chalal is disqualified from marrying a Kohen forever.  [If] a non-Kohen married a chalalah, his daughter is qualified to marry a Kohen. [If] a chalal married the daughter of a non-Kohen, his daughter is disqualified from marrying a Kohen.  R’ Yehudah says: The daughter of a male proselyte is like the daughter of a male chalal.

R’ Eliezer ben Yaakov says: [If] a non-Kohen married a proselyte, his daughter is qualified to marry a Kohen; [if] a proselyte married the daughter of a regular Jew, his daughter is qualified to marry a Kohen. However, [if] a proselyte married a proselyte, his daughter is disqualified from marrying a Kohen. [This applies to] both a proselyte and freedmen, even until ten generations, unless his mother is of Jewish descent. R’ Yose says: Even [if] a proselyte married a proselyte, his daughter is qualified to marry a Kohen.

One who says: “ This son of mine is a mamzer,” is not believed. Even if they both say, concerning the fetus in her womb: “ He is a mamzer,” they are not believed. R’ Yehudah says: They are believed.

[If] someone authorized his agent to give his daughter in kiddushin, and he went and gave her in kiddushin —- if his was first, his kiddushin is valid; if that of his agent was first, his kiddushin is valid; if it is not known, they both give a get. If they desire, one may give a get and the other may marry [her].  Similarly, [if] a woman authorized an agent to accept her kiddushin, and she went and accepted her own kiddushin —- if hers was first, her kiddushin is valid; if her agent’s was first, his kiddushin is valid; if it is not known, they both give her a get. If they desire, one may give her a get and the other marry [her].

Someone who went overseas with his wife and then came with his wife and his children, and said that this is the woman who went overseas with him and these are her children need not bring proof concerning the woman nor concerning the children. [If he said:] “ She died and these are her children,” he must bring proof concerning the children, but he need not bring proof concerning the woman.

[If one says:] “ I married a woman overseas; this is she and these are her children,” he must bring proof concerning the woman, but he need not bring proof concerning the children.  [If he says:] “ She died, and these are her children,” he must bring proof concerning the woman and the children.

A man may not be alone with two women, but one woman may be alone with two men. R’ Shimon says: Even one man may be alone with two women when his wife is with him. He may sleep with them in an inn, because his wife watches him.  A man may be alone with his mother or with his daughter, and he may sleep with them with bodily contact. If they grew up, she sleeps in her clothes and he sleeps in his clothes.

A bachelor may not accustom himself to be among the teachers, and a woman may not accustom herself to be among the teachers. R’ Eliezer says: Also one whose wife is not living with him may not accustom himself to be among the teachers.