he asked abu ‘Abdallah (a.s.) the following. “Would there happen what is to happen, may Allah would not show me such a day (death of the Imam (a.s.) who then must I follow as my Imam?” The Imam (a.s.) pointed to his son Musa (a.s.). The narrator has said that he asked the Imams (a.s.), “ What if something will happen to Musa (a.s.) who then must I follow?” The Imam (a.s.), “Follow a son.” I then asked, “What if something would happen to the son and the Imam would leave behind an elder brother or a small son then who must I follow?” The Imam (a.s.) said, “Follow his son and so on one after the other.” In the script of Sawan it says, “. .and so on forever.”