Quran 11:85 — Hud (Hud)
"O my people, you shall give full measure and full weight, equitably. Do not cheat the people out of their rights, and do not roam the earth corruptingly.
[11:84] To Midyan we sent their brother Shu‘aib. He said, "O my people, worship GOD; you have no other god beside Him. Do not cheat when you measure or weigh. I see that you are prosperous, and I fear for you the retribution of an overwhelming day.
[11:86] "Whatever GOD provides for you, no matter how small, is far better for you, if you are really believers. I am not a guardian over you."