Kitāb al-Ghayba

(2) 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 al-Mufadhdhal bin Muhammad al-Ash’ari from Hurayz from Abu Abdullah as-Sadiq (as) from his father (as) that Ali bin al-Husayn as-Sajjad (as) had said: “When al-Qa’im appears, Allah will cure every sick believer and restore to him his power.”