Sahih al-Bukhari 698
صحيح البخاري#698SahihNarrated Ibn `Abbas:One night I slept at the house of (my aunt) Maimuna and the Prophet (ﷺ) was there on that night. He performed ablution and stood up for the prayer. I joined him and stood on his left side but he drew me to his right and prayed thirteen rak`at and then slept till I heard his breath sounds. And whenever he slept, he used to breathe with audible sounds. The Mu'adh-dhin came to the Prophet (ﷺ) and he went out and prayed the morning prayer) without repeating the ablution
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: 10:93