The belief of those who say that Imam Hasan Askari (a.s) has not died and that he is alive; on the contrary he is the Mahdi, is invalid from the aspect that just as we know about the passing away of his ancestors, we are having information about his martyrdom as well, and the same arguments are applicable in this matter as well [mentioned previously]. In addition to this, those who had such belief are now extinct, whereas if they had been true, they would not have disappeared. The following traditional reports also prove the martyrdom of Imam Hasan Askari (a.s):