Sahih Muslim Hadith 3573 – The Prohibition 44) – (
English
[3573] 5 – ( … ) It was narrated from 'Urwah that 'Aishah told him that Aflab, the brother of Abü Al-Qu'ais, came and asked for permission to enter upon her, after the (command of) Hijâb had been revealed. Abü A1-Qu'ais was 'Aiah's father through breast- feeding. 'Aiah said: "I said: 'By Allah, I will not give permission to Allah until I seek permission from the Messenger of Allah ç, for Abü Al-Qu'ais is not the one who breastfed me, rather his wife breastfed me." 'Aishah said: "When the Messenger of Allah came in, I said: '0 Messenger of Allah, Ahab, the brother of Abü A1-Qu'ais, came to me and asked permission to enter upon me, but I did not want to give him permission until I asked your permission.' The Prophet said: 'Give him permission." 'Urwah said: "Because of that, 'Ai.hah used to say: 'Regard as unlawful through breastfeeding that which you regard as unlawful through lineage."