أَوْفُوا الْكَيْلَ وَلَا تَكُونُوا مِنَ الْمُخْسِرِينَ وَزِنُوا بِالْقِسْطَاسِ الْمُسْتَقِيمِ وَلَا تَبْخَسُوا النَّاسَ أَشْيَاءهُمْ وَلَا تَعْثَوْا فِي الْأَرْضِ مُفْسِدِينَ (26: 181-183)

Give full measure and defraud none. Weigh with the right scales and do not cheat your fellow men of what is rightly theirs; and do not spread disorder in the land. (26:181-183)