And We sent to -Madyan-- their brother Shu'ayb, so he said to them: "O my people worship Allah alone, and sincerify for Him the worship, there is no god for you besides Him, and hope by your worship for the recompense of the Last Day, and do not increase in the earth corruption and acts of disobedience, and do not stay upon them, but rather repent to Allah from them and turn [to Him]."