Sahih Muslim 2946
صحيح مسلم#2946SahihJabir b. 'Abdullah (Allah be pleased with them) reported:We set out with Allah's Messenger (ﷺ) as Muhrim for Hajj. The Messenger of Allah (ﷺ) commanded us to make this Ihram for Umra, and some put it off (after performing 'Umra), but the Prophet (ﷺ) had sacrificial animals with him, so he could not make it (this Ihram) as that of Umra
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: 15:155