Sahih Muslim 4339
صحيح مسلم#4339SahihJabir is reported to have said:A person amongst the Ansar who had no other property declared a slave free after his death. Allah's Messenger (ﷺ) sold him, and Ibn al-Nahham bought him and he was a Coptic slave (who) died in the first year of the Caliphate of Ibn Zubair
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 27:86