Sahih Muslim 1798
صحيح مسلم#1798SahihIbn `Abbas reported:I slept one night in the house of Maimuna when the Messenger of Allah (ﷺ) was there, with a view to seeing the prayer of the Messenger of Allah (ﷺ) at night. The Apostle of Allah (ﷺ) entered into conversation with his wife for a short while, and then went to sleep, and the rest of the hadith is the same and in it mention is made of: "He then got up, performed ablution and brushed his teeth
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 6:226