Sahih al-Bukhari 6292
صحيح البخاري#6292SahihNarrated Anas:The Iqama for the prayer was announced while a man was talking to Allah's Messenger (ﷺ) privately. He continued talking in that way till the Prophet's companions slept, and afterwards the Prophet (ﷺ) got up and offered the prayer with them
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: 79:64