“ Once I went to see abu ‘Abdallah (a.s.) and said to him, “Are you the in charge of this task ((to rise with divine power)?” he said, “No, I am not he.” I then asked, “Is he your son?” He said, “No, my son will be he either.” I then asked, “Will the son of your son be he?” He said, “No, my grandson will not be he.” I then asked will your great grandson be he?” The Imam (a.s.) said, “No, my great grandson will not be he also.” I the asked, “Who then be he?” The Imam (a.s.) said, “He will be the one who will fill the earth with justice after its being filled with injustice and cruelty. (He will come) at a time when the Imams will be absent just as the Messenger of Allah was raised (to preach) when for a long time there had come no messengers.”