Sahih al-Bukhari 639
صحيح البخاري#639SahihNarrated Abu Huraira:Allah's Messenger (ﷺ) went out (of the mosque) when the Iqama had been pronounced and the rows straightened. The Prophet (ﷺ) stood at his Musalla (praying place) and we waited for the Prophet (ﷺ) to begin the prayer with Takbir. He left and asked us to remain in our places. We kept on standing till the Prophet returned and the water was trickling from his head for he had taken a bath (of Janaba)
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: 10:36