Once the Prophet (ﷺ) came to me while a man was in my house. He said, "O `Aisha! Who is this (man)?" I replied, "My foster brothers" He said, "O `Aisha! Be sure about your foster brothers, as fostership is only valid if it takes place in the suckling period (before two years of age).
Sahih al-Bukhari Book 52, Hadith 11
← Previous Hadith That `Aisha the wife of the Prophet (ﷺ) told her uncle that once, while the Prophet (ﷺ) was in her house, she heard a man asking Hafsa's permission to enter her house. `Aisha said, "I said, 'O Allah's Messenger (ﷺ)! I think the man is Hafsa's foster uncle.' " `Aisha added, "O Allah's Messenger (ﷺ)! There is a man asking the permission to enter your house." Allah's Messenger (ﷺ) replied, "I think the man is Hafsa's foster uncle." `Aisha said, "If so-and-so were living (i.e. her foster uncle) would he be allowed to visit me?" Allah's Apostle said, "Yes, he would, as the foster relations are treated like blood relations (in marital affairs).

Sahih al-Bukhari Book 52, Hadith 10 Next Hadith → A woman committed theft in the Ghazwa of the Conquest (of Mecca) and she was taken to the Prophet who ordered her hand to be cut off. `Aisha said, "Her repentance was perfect and she was married (later) and used to come to me (after that) and I would present her needs to Allah's Messenger (ﷺ)."

Sahih al-Bukhari Book 52, Hadith 12