Sahih Muslim 1924
صحيح مسلم#1924SahihIbn 'Umar reported Allah's Messenger (ﷺ) as saying:Let not any one of you intend to observe prayer at the time of the rising of the sun or of the setting sun
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: 6:352