I heard Abu Ja’far (AS) say: “For the owner of this affair (Imam Mahdi), there are (four) traditions from four prophets: a tradition from Moses, a tradition from Jesus, a tradition from Joseph, and a tradition from Muhammad (sw). As for the tradition from Moses, it is a feared anticipation. As for the tradition from Joseph, it is the occultation. As for the tradition from Jesus, it is said: he died, though he did not die. And as for the tradition from Muhammad (sw), it is the sword.”