کتاب الفتن · نُعیم بن حماد

Before the Mahdi, a man will emerge from his household in the East. He will carry the sword on his shoulder for eight months. He will be killed, mutilated, and head to Jerusalem. He will not reach it until he dies. The black banners that come from Khorasan will descend on Kufa. When the Mahdi appears in Mecca, he will send the pledge of allegiance to the Mahdi.