Sahih al-Bukhari 3557
صحيح البخاري#3557SahihNarrated Abu Huraira:Allah's Messenger (ﷺ) said, "I have been sent (as an Apostle) in the best of all the generations of Adam's offspring since their Creation
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: 61:66