Sahih Muslim 617
صحيح مسلم#617SahihA'isha reported:The Messenger of Allah (ﷺ) loved to start from the right-hand side in his every act i. e. in wearing shoes, in combing (his hair) and in performing 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 Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 2:84