Sahih al-Bukhari 3697
صحيح البخاري#3697SahihNarrated Ibn `Umar:During the lifetime of the Prophet (ﷺ) we considered Abu Bakr as peerless and then `Umar and then `Uthman (coming next to him in superiority) and then we used not to differentiate between the companions of the Prophet
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: 62:47