Musannaf Ibn Abi Shaybah

It is narrated from Hazrat Ali (may Allah be pleased with him) that he said: Indeed, the last group of rebels to emerge in Islam will come out from the travelers’ inn of Kufa, Daskarah (which is built like a palace). People will join them; one third of them will be killed, one third will enter (a safe place), and one third will be besieged in a monastery. Marmari (which is near Samarra by the Wasf bridge) in the monastery, some of them will have white and black hair. People will besiege them and kill them (from the monastery, etc.) and they will be killed. This will be the last rebel army to emerge in Islam.