کتاب الفتن · نُعیم بن حماد

After the tyrants, there will be the Jaber, through whom Allah will force the nation of Muhammad, ﷺ, then the Mahdi, then Al-Mansour, then peace, then the prince of the people, so whoever is able to die after that, let him die.

Al-Walid bin Muslim told us, on the authority of a sheikh, on the authority of Yazid bin Al-Walid Al-Khuza’i, on the authority of Ka’b, who said: “Three of the sons of Abbas rule: Al-Mansur, Al-Mahdi, and Al-Saffah.”