Sahih al-Bukhari 3754
صحيح البخاري#3754SahihNarrated Jabir bin `Abdullah:`Umar used to say, "Abu Bakr is our chief, and he manumitted our chief," meaning Bilal
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: 62:99