Signs preceding the reappearance of Imam Mahdi عليه السلام

H 432 - It is narrated from Al-Fadhl bin Shadhan from Nasr bin Muzahim from Abu Lahi'a from Abu Zar'a from Abdullah bin Razeen from Ammar bin Yasir رضي الله عنه that he said: “The call from the Ahlul Bayt عليه السلام of your Prophet will come during the end of time. Thus, hold on to the earth and keep quiet until you see its leader (of the call). When the Turks confront the Romans, and battles shall increase all over the world; a caller will call out from the walls of Damascus: "Woe to the one who is near from the approaching evil!", and the wall of the mosque (of Damascus) will collapse.”