question #2 Sahih al-Bukhari 3517, Book 61, Hadith 27 : Who is the man from the tribe of Qahtan mentioned in Islamic prophecies, and what is his significance?

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).”