Sahih al-Bukhari 2594
صحيح البخاري#2594SahihNarrated Maimuna, the wife of the Prophet (ﷺ) that she manumitted her slave-girl and the Prophet (ﷺ) said to her, "You would have got more reward if you had given the slave-girl to one of your maternal uncles
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: 51:28