English translation
5105. Ibn 'Abbās further said, "Seven types of marriages are unlawful because of blood relations, and seven because of marriage relations.” Then Ibn ‘Abbās recited the Verse: “Forbidden to you (for marriage) are your mothers...” (V.4:23) ‘Abdullāh bin Ja’far married the daughter and wife of ‘Alī at the same time (they were step-daughter and mother). Ibn Sirīn said, “There is no harm in that.” But Al-Ḥasan Al-Baṣrī disapproved of it at first, but then said that there was no harm in it. Al-Ḥasan bin Al-Ḥasan bin ‘Alī married two of his cousins in one night. Ja’far bin Zaid disapproved of that because it would bring about hatred (between the two cousins), but it is not unlawful, as Allāh said, “Lawful to you are all others [beyond those (mentioned)].” (V.4:24) Ibn ‘Abbās said, “If somebody commits illegal sexual intercourse with his wife’s sister, his wife does not become unlawful for him”. And narrated Abū Ja’far, “If a person commits homosexuality with a boy, then the mother of that boy is unlawful for him to marry.” Narrated Ibn ‘Abbās, “If one commits illegal sexual intercourse with his mother-in-law, then his married relation to his wife does not become unlawful.” Abū Naṣr is reported to have said that Ibn ‘Abbās in the above case, regarded his marital relation to his wife unlawful, but Abū Naṣr is not known well for hearing Ḥādīth from Ibn Abbās. Imrān bin Ḥusain, Jābir bin Zaid, Al-Ḥasan and some other Irāqīs, are reported to have judged that his marital relations to his wife would be unlawful. In the above case Abū Hurairah said, “The marital relation to one’s wife does not become unlawful except if one has had sexual intercourse (with her mother).” Ibn Al-Musaiyab, ‘Urwa, and Az- Zuhri allow such a person to keep his wife. 'Ali said, "His marital relations to his wife does not become unlawful."