[11]. That there is nothing like Him. A companion of the Prophet said, i asked the prophet Muhammad ﷺ, "What is the greatest sin in the sight of Allāh?" He said, "That you set up an equal unto Allāh though He Alone created you." I said, "That is indeed a grave sin." Then I asked, "What is next?" He said "To kill your child lest he should share your food with you." I asked, "What is next?" He said, "To commit adultery with the wife of your neighbour.".