Sahih al-Bukhari 2717
صحيح البخاري#2717SahihNarrated `Urwa:Aisha told me that Barirah came to seek her help in writing for emancipation and at that time she had not paid any part of her price. `Aisha said to her, "Go to your masters and if they agree that I will pay your price (and free you) on condition that your Wala' will be for me, I will pay the money." Barirah told her masters about that, but they refused, and said, "If `Aisha wants to do a favor she could, but your Wala will be for us." Aisha informed Allah's Messenger (ﷺ) of that and he said to her, "Buy and manumit Barirah as the Wala' will go to the manumitted
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 54:6