“I asked abu ‘Abdallah (a.s.) at Mina five hundred letters from al-Kalam (theology). I asked the Imam (a.s.), “They say that he has said so and so.” Then he says, “You say so and so.” I then said to the Imam (a.s.), “May Allah, take my soul in service for your cause, “This is lawful and that is not lawful. I know that you are the authority in this and you are the most knowledgeable person in it and this is al-Kalam.” The Imam (a.s.) said to me, “O poor, Hisham, Allah, the Most Holy, the Most High, does not require any duty from His creatures without first availing them all that they need to comply with the command.”