Tacit and Explicit Testimony as proof of abu al-Hassan al-Rida’s عليه السلام Divine Authority over the people after abu al-Hassan Musa عليه السلام

5. Ahmad ibn Idris has narrated from Muhammad ibn ‘Abd al-Jabbar from al-Hassan ibn al-Husayn al-Lu’lu’i from Yahya ibn ‘Amr from Dawud al-Raqqi who has said the following. “I said to abu al-Hassan aMusa عليه السلام, ‘I have grown old and my bones are weakening. I asked your father عليه السلام and he informed me about you. Would you also inform me (about the Imam after you).” The Imam عليه السلام said, “This abu al-Hassan al-Rida.”