And We sent to -Madyan-- their brother Shu'ayb, so he said: "O my people worship Allah alone, there is not for you of a god deserving worship other than Him Glorious and Sublime, so sincerify for Him the worship, and do not diminish the people their rights in their measures and their scales, indeed I see you in a vastness of living, and indeed I fear for you-because of the reduction of the measure and the scale-the punishment of a day that encompasses you."