Refutation of those who stopped at the Imamate of Imam Ja’far Sadiq عليه السلام and said that he is the Promised Mahdi

As for the Waqifa, who stop at the Imamate of Musa Ibn Ja’far عليه السلام, saying that he is the Mahdi, we have invalidated their belief by proving that Imam Musa Kadhim عليه السلام passed away and that his death was a well-known historical reality and that his son, Imam Ridha عليه السلام was the Imam after him, and this much is sufficient for people of reason.