کتاب الفتن · نُعیم بن حماد

The Mahdi will descend in Bayt al-Maqdis, then there will be caliphs from his family after him, their term will be prolonged, and they will be arrogant until the people pray against the Banu Abbas and the Banu Umayyad from what they receive from them.

Muhammad bin Abdullah Al-Tahirti told us, on the authority of Abd al-Salam bin Maslama, on the authority of Abu Qabil, who said: “After the Mahdi, there will not be anyone from his family who treats the people justly, and their oppression of the people after the Mahdi will continue until the people pray for the Abbasids and say: I wish they were in their place. So the people will continue like this until they invade Constantinople with their governor, who is a righteous man and hand it over to Jesus son of Mary (peace be upon him), and the people will continue to be in prosperity unless The rule of the Abbasids will be destroyed, and if their rule is destroyed, they will not cease to be in turmoil until the Mahdi arises.”