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

11. Ahmad ibn Mihran has narrated from Muhammad ibn Ali from Abu Ali al-Khazzaz from Dawud ibn Sulay who has said the following. “I said to abu Ibrahim عليه السلام, “I am afraid that an incident may take place and I will not be able to see you, inform me who will be the Imam after you?” The Imam عليه السلام said, “My son, so and so, meaning thereby abu al-Hassan عليه السلام.”