Sahih al-Bukhari 4405
صحيح البخاري#4405SahihNarrated Jarir:The Prophet (ﷺ) ordered me during Hajjatul-Wada`. "Ask the people to listen." He then said, "Do not become infidels after me by cutting the necks (throats) of one another
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: 64:427