Aḥmad b. Idrīs, from Aḥmad b. Muḥammad, from al-ʿAbbās b. al-Najāshī al-Asadī, who narrated: “I said to al-Riḍā عليه السلام: “Are you the Master of this Ordinance?,” to which he replied: “Aye, by Allāh, upon both mankind and the jinn.”