The people of Araf Abu Tahar narrated that he heard Fatimah (sa) say, "Once I asked my father about this saying of Allah Almighty:" ... And at the edge (the great screen between heaven and hell) there will be people who will know everyone by their signs. " 7:46 And he said: "They are the imams after me; Ali, my two grandchildren and nine of the descendants of al-Hussein. They are Araf people. No one enters Paradise except those who know (believe in) them and those they know, and no one enters the Fire except those who deny them and they deny. Allah Almighty is known only through their knowledge." Bihar Al Anwar, Vol. 36, p. 315 +989338604490.