6. [6/40] al-Kafi: Ali b. Ibrahim from his father from Ibn Abi Umayr from Hisham b. Salim who said
I said to Abi Abdillah عليه السلام: what is the right of Allāh over his creation? he said: that they should only say that which they know and should remain silent over that which they do not know – so if they were to do that then they have fulfilled the right of Allāh.