A man who holds the marriage contract of a woman: is she lawful for his father if he has not consummated?

Tawus said: If a man marries a woman, that woman is not lawful for his father, whether he consummated the marriage with her or not. And likewise she is not lawful for his son, whether he consummated the marriage with her or not.

Al-Zuhri said: If a man marries a woman, that woman becomes unlawful for his son and his father. Likewise, if either of them looked at the private part of a woman (after uncovering her), she too becomes unlawful for the other.

Makhul said: If either the father or the son marries a woman, that woman becomes unlawful for the other.

Al-Hasan was asked: If a man married a woman and divorced her before consummating the marriage, may that man's father marry the woman? He considered it disliked (makruh) and recited this verse of the Qur'an: "and the wives of your sons" [Al-Nisa: 23].

Al-Hasan and Muhammad (Ibn Sirin) said: Three verses are unqualified (mubham): "and the wives of your sons", "whom your fathers married" and "and the mothers of your wives" [Al-Nisa: 22, 23].

Al-Ash'ath said: And this fourth verse is not unqualified: "and your stepdaughters who are in your care, born of your wives" [Al-Nisa: 23]. The narrator Mu'adh recited this verse to its end.

Ibrahim said: If a man marries a woman and does not consummate the marriage with her, she is still not lawful for his father.