Sahih al-Bukhari 7139
صحيح البخاري#7139SahihNarrated Muhammad bin Jubair bin Mut`im:That while he was included in a delegation of Quraish staying with Muawiya, Muawiya heard that `Abdullah bin `Amr had said that there would be a king from Qahtan tribe, whereupon he became very angry. He stood up, and after glorifying and praising Allah as He deserved, said, "To proceed, I have come to know that some of you men are narrating things which are neither in Allah's Book, nor has been mentioned by Allah's Messenger (ﷺ) . Such people are the ignorant among you. Beware of such vain desires that mislead those who have them. I have heard Allah's Messenger (ﷺ) saying, 'This matter (of the caliphate) will remain with the Quraish, and none will rebel against them, but Allah will throw him down on his face as long as they stick to the rules and regulations of the religion (Islam)
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: 93:3