Ibn Shihab was asked: What is the ruling if a man drinks the milk of a woman in old age? He said: 'Urwah bin Zubair narrated to me that Sayyiduna Hudhaifah bin 'Utbah bin Rabi'ah (may Allah be pleased with him), who was among the Companions of the Messenger of Allah (peace be upon him) and was with him at the Battle of Badr, had adopted Salim as his son, so Salim Mawla used to call Sayyiduna Abu Hudhaifah (may Allah be pleased with him) his father, just as the Messenger of Allah (peace be upon him) had adopted Zaid as his son. And Sayyiduna Abu Hudhaifah (may Allah be pleased with him) married Salim to his niece Fatimah bint Walid, who was among the first emigrants and was the most virtuous among all the widowed women of Quraysh. When Allah, Glorious and Exalted is He, revealed in His Book regarding Sayyiduna Zaid bin Harithah (may Allah be pleased with him): "Call them by [the names of] their fathers; that is more just in the sight of Allah." If their father's name was not known, they would be attributed to their master. Then Sayyidah Sahla bint Suhail (may Allah be pleased with her), the wife of Sayyiduna Abu Hudhaifah (may Allah be pleased with him), who was from the descendants of Banu 'Amir bin Lu'ayy, came to the Messenger of Allah (peace be upon him) and said: "O Messenger of Allah (peace be upon him)! We used to consider Sayyiduna Salim (may Allah be pleased with him) as our child. We would be uncovered in his presence, and he would enter freely. What should we do now? We do not have another house." The Messenger of Allah (peace be upon him) said: "Give him milk to drink five times, and he will become your mahram." Then the wife of Sayyiduna Abu Hudhaifah (may Allah be pleased with him) did so, and began to consider Salim as her foster son. Umm al-Mu'minin Sayyidah 'A'ishah (may Allah be pleased with her) used to act upon this hadith, and whenever she wished for a man to come and go freely in her presence, she would instruct her sister Umm Kulthum and her nieces to give their milk to that man. But the other wives of the Messenger of Allah (peace be upon him) rejected this, that anyone could become their mahram by drinking milk in old age and come and go freely in their presence. They used to say that this was a special concession from the Messenger of Allah (peace be upon him) for Sayyidah Sahla bint Suhail (may Allah be pleased with her). By Allah! No one can become our mahram through such nursing.

It is narrated from Abdullah bin Dinar that a man came to Sayyiduna Abdullah bin Umar (may Allah be pleased with them both), and I was with him near Dar al-Qada. He began to ask: What is the ruling regarding the suckling of an adult? Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) said: A man came to Sayyiduna Umar (may Allah be pleased with him) and said: I had a slave woman with whom I used to have relations. My wife intentionally gave her milk to drink. When I was about to go to her, she said: Listen, by Allah! I have already given her milk to drink. Sayyiduna Umar (may Allah be pleased with him) said: Punish your wife and have relations with your slave woman. Suckling is only in childhood (not in adulthood).

Yahya ibn Sa'id narrated that a man said to Sayyiduna Abu Musa Ash'ari (may Allah be pleased with him): I was sucking my wife's milk from her breast, and it went into my stomach. Sayyiduna Abu Musa Ash'ari (may Allah be pleased with him) said: In my view, that woman has become unlawful for you. Sayyiduna Abdullah ibn Mas'ud (may Allah be pleased with him) said: See what ruling you are giving to this man. Sayyiduna Abu Musa Ash'ari (may Allah be pleased with him) said: Well, what do you say? Sayyiduna Abdullah ibn Mas'ud (may Allah be pleased with him) said: Suckling is that which is within two years. When Sayyiduna Abu Musa (may Allah be pleased with him) heard this, he said: Do not ask me anything as long as this scholar is among you (referring to Sayyiduna Abdullah ibn Mas'ud, may Allah be pleased with him).