Signs preceding the reappearance of Imam Mahdi عليه السلام

H 440 - It is narrated from Fadhl from Hasan bin Ali bin Faddal from Thalaba from Shuaib Haddad from Salih that he said: I heard Imam Ja’far Sadiq عليه السلام say: “There will be only a gap of fifteen days between the rising of the Qaim of Aale Muhammad and the killing of the Pure Soul (Nafse Zakiyyah).”