[4/-] al-Kafi: Ali 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.
[-/4] الكافي: علي، عن ابيه، عن ابن أبي عمير، عن هشام بن سالم قال: قلت لابي عبدالله عليه السلام: ما حق الله على خلقه؟ فقال: أن يقولوا ما يعلمون، ويكفوا عما لا يعلمون، فإذا فعلوا ذلك فقد أدوا إلى الله حقه