Prophet Hud - 11:85
O my people, measure and weigh exactly with justice. Do not shortchange the people and do not commit evil by corrupting the earth.
Related:
The Defrauding/83:2
When they take from the people, they measure exactly.
اَلَّذ۪ينَ اِذَا اكْتَالُوا عَلَى النَّاسِ يَسْتَوْفُونَۘ
The Defrauding/83:3
And when they give, they keep the measure and the weighing incomplete.
وَاِذَا كَالُوهُمْ اَوْ وَزَنُوهُمْ يُخْسِرُونَۜ
The Defrauding/83:4
Do they not think that they will be resurrected?
اَلَا يَظُنُّ اُو۬لٰٓئِكَ اَنَّهُمْ مَبْعُوثُونَۙ
The Night Journey/17:35
When you measure, measure precisely and weigh with accurate scales. Surely that is better and the result is better
وَاَوْفُوا الْكَيْلَ اِذَا كِلْتُمْ وَزِنُوا بِالْقِسْطَاسِ الْمُسْتَق۪يمِۜ ذٰلِكَ خَيْرٌ وَاَحْسَنُ تَأْو۪يلاً
The Heights/7:85
"And We sent to Median their brother Shu´ayb. He said: "O My people, worship Allah. You have no gods besides Him. A clear proof has come to you from your Lord. Measure and weigh exactly. Do not eat the people´s right. Do not make corruption in the earth after it has been leveled. This is better for you if you believe."
وَاِلٰى مَدْيَنَ اَخَاهُمْ شُعَيْباًۜ قَالَ يَا قَوْمِ اعْبُدُوا اللّٰهَ مَا لَكُمْ مِنْ اِلٰهٍ غَيْرُهُۜ قَدْ جَٓاءَتْكُمْ بَيِّنَةٌ مِنْ رَبِّكُمْ فَاَوْفُوا الْكَيْلَ وَالْم۪يزَانَ وَلَا تَبْخَسُوا النَّاسَ اَشْيَٓاءَهُمْ وَلَا تُفْسِدُوا فِي الْاَرْضِ بَعْدَ اِصْلَاحِهَاۜ ذٰلِكُمْ خَيْرٌ لَكُمْ اِنْ كُنْتُمْ مُؤْمِن۪ينَۚ