Sahih al-Bukhari 3517
صحيح البخاري#3517SahihNarrated Abu Hurairah (ra):The Prophet (ﷺ) said, "The hour will not be established unless a man from the tribe of Qahtan appears, driving the people with his stick (ruling them with violence and oppression)
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: 61:27