(19) باب الْوَلاَءُ لِمَنْ أَعْتَقَ، وَمِيرَاثُ اللَّقِيطِ
Narrated `Aisha:
I bought Barira (a female slave). The Prophet (ﷺ) said (to me), "Buy her as the Wala' is for the manumitted." Once she was given a sheep (in charity). The Prophet (ﷺ) said, "It (the sheep) is a charitable gift for her (Barira) and a gift for us." Al-Hakam said, "Barira's husband was a free man." Ibn `Abbas said, 'When I saw him, he was a slave."
Reference: Sahih al-Bukhari 6751
In-book reference: Book 85, Hadith 28
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 80, Hadith 743