Signs preceding the reappearance of Imam Mahdi عليه السلام

H 458 - It is narrated from Fadhl from Muhammad bin Ali Kufi from Wuhaib bin Hafas from Abu Basir from Imam Ja’far Sadiq عليه السلام that he said: “The name of Imam Qaim عليه السلام will be announced on the 23rd night and he will reappear on the day of Ashura, on which Imam Husain عليه السلام was martyred.”