Sahih Bukhari
Laws of Inheritance (Al-Faraaid)
Volume: 008 / Book Number: 080 / Hadith Number: 743
Narrated 'Aisha:
I bought Barira (a female slave). The Prophet said (to me), "Buy her as the Wala' is for the manumitted." Once she was given a sheep (in charity). The Prophet 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."