Sahih al-Bukhari 643
صحيح البخاري#643SahihNarrated Anas bin Malik:Once Iqama was pronounced a man came to the Prophet (ﷺ) and detained him (from the prayer)
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: 10:40