H 422 - Fadhl bin Shazan has narrated from Muhammad bin Ali from Sadan bin Muslim from Abu Basir that he said: I asked Imam Muhammad Baqir or Imam Ja’far Sadiq : “Does reappearance of the master of affair has a fixed time that we might rest assured be pleased with it?” He replied: “Yes, it was fixed, but you people divulged it and Almighty Allah postponed it.”