Mu'jam Kabir Tabarani 20233 — the Messenger of Allah ﷺ said: There

It is narrated from Sayyidah Umm Salamah (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) said: "There will be a dispute at the death of a caliph, and a man from Banu Hashim will go out from Madinah to Makkah. Then people will come to him and give him the pledge of allegiance between the Corner and the Station, while he himself dislikes it. Then an army will be prepared against them from Syria, until, when they reach al-Bayda', they will be swallowed up by the earth. Then the bands of Iraq and the Abdal of Syria will come to him, and a man will rise up in Syria whose maternal uncles are from the tribe of Kalb. He will prepare an army against them, and Allah will defeat them, and the defeat will fall upon them; that will be called the Day of Kalb, and the deprived one will be he who is deprived of the spoils of Kalb. And he will bring out the treasures and distribute the wealth, and Islam will spread out its belongings upon the earth. He will live in that state for seven years or six years."
Ubaydullah said: I narrated this hadith to Layth, and he said: Mujahid narrated it to me.