Sahih Muslim 565
صحيح مسلم#565SahihJabir b. 'Abdullah reported that he heard the Messenger of Allah (ﷺ) say:When anyone wipes himself with pebbles (after answering the call of nature) he should do this odd number of times
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: 2:32