Sahih Bukhari

Narrated Al-Aswad:`Aisha intended to buy Barira (a slave-girl) in order to manumit her and her masters intended to put the condition that her Al-wala would be for them. `Aisha mentioned that to the Prophet (ﷺ) who said to her, ""Buy her, as the ""Wala"" is for the manumitted."" Once some meat was presented to the Prophet (ﷺ) and `Aisha said to him, ""This (meat) was given in charity to Barira."" He said, ""It is an object of charity for Barira but a gift for us