Sahih Muslim 591
صحيح مسلم#591SahihA'isha reported:Whenever Allah's Messenger (ﷺ) entered his house, he used tooth-stick first of all
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: 2:58