And We surely sent to the tribe of -Madyan-- their brother Shu'ayb peace be upon him, so he said to them: O my people worship Allah alone no partner for Him; there is not for you of a god deserving worship other than Him Glorious and Sublime so sincerify for Him the worship, there has surely come to you a proof from your Lord on the truthfulness of what I call you to, so perform for the people their rights by fulfilling the measure and the scale, and do not diminish for them their rights thus you wrong them, and do not spread corruption in the earth-with disbelief and injustice-after its reform by the laws of the previous prophets peace be upon them. That which I called you to is better for you in your world and your hereafter, if you were confirmers of what I called you to, actors by the law of Allah.