Sahih al-Bukhari 1085
صحيح البخاري#1085SahihNarrated Ibn `Abbas:The Prophet (ﷺ) and his companions reached Mecca in the morning of the 4th Dhul-Hijja reciting Talbiya (O Allah! We are obedient to your orders, we respond to your call) ... intending to perform Hajj. The Prophet (ﷺ) ordered his companions to assume the Ihram for Umra instead of Hajj, excepting those who had Hadi (sacrifice) with them
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 18:6