Kitāb al-Ghayba (al-Nuʿmānī), no. 328

(24) Ahmad bin Muhammad bin Sa’eed narrated from Ahmad bin Yousuf bin Ya’qoob al-Ju’fi from Issma’eel bin Mihran from al-Hasan bin Ali bin Abu Hamza from his father from Abu Baseer that Abu Abdullah as-Sadiq (as) had said: “If the Abbasid ruler ascends the minbar of Marwan, the state of the Abbasids will begin to decline gradually. My father has said to me: “There must be a fire coming from Azerbaijan that will destroy everything. When that occurs, you are to stay at homes as long as we have stayed. When our man (al-Qa’im) rises, then hurry up to him even crawling. By Allah, as if I see him between the corner and the temple being paid homage to rule over the people with a new method. He will be severe with the Arabs. Woe unto the Arabs from a soon evil!”