Narrated Jabir declared that the Jews used to say:
“When a man has intercourse with his wife through the vagina, but being on her back, the child will have a squint,” so the verse came down, “Your wives are a tilth to you, so come to your tilth however you will” (Al-Qur’an 2:223).
He told of a man who went to God's Messenger and said, “I have a slave-girl who is our servant and I have intercourse with her, but do not want her to conceive.” He replied, “Withdraw your penis from her if you wish, for what is decreed for her will come to her.” After a time the man came and told him the girl had become pregnant, and he said, “I told you that what was decreed for her would come to her.”
‘Amr b. Shu’aib, on his father’s authority, said that his grandfather reported God’s Messenger as saying, “If any man marries a woman and cohabits with her it is not lawful for him to marry her daughter, but if he does not cohabit with her he may marry her daughter; and if any man marries a woman it is not lawful of him to marry her mother whether he has cohabited with her or not.”
Tirmidhi transmitted it, saying this is a tradition which is not sound, with respect to its isnad. It is transmitted only by Ibn Lahi'a and al-Muthanna b. as-Sabbah on the authority of ‘Amr b. Shu’aib, and they are both declared to be weak in tradition.
