(4) Ahmad bin Muhammad bin Sa’eed narrated from Yahya bin Zakariyya bin Shayban from Ali bin Sayf bin Omayra from Abban bin Uthman that Hamran bin A’yun had said: I asked Abu Abdullah as-Sadiq about the imams and he said: “He, who denies one of the alive imams, has denied the dead (imams).”