Sahih Muslim 3085
صحيح مسلم#3085SahihJabir b. 'Abdullah reported that Allah's Apostle (ﷺ) and his Companions did not observe Sa'i between al-Safa' and al-Marwa but only one Sa'i
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: 15:291