As to the people of Mydian, I appointed their brother Shu'aib as a prophet. He said: "My people, obey God as you do not have any other Lord beside Him. He has indeed provided you with an undeniable miracle. Do not sell less than what you are paid for by using the wrong scales. Do not cheat people out of their rights. Do not spread all kind of sinful act in the [Lord's] land once the corruption has been dealt with. These are the best advices to follow, if you have chosen the belief."