And give full measure when you measure, and weigh with an even balance. That is the best [way] and best in result.
The Saheeh International Quran Translation
وَأَوْفُوا۟ ٱلْكَيْلَ إِذَا كِلْتُمْ وَزِنُوا۟ بِٱلْقِسْطَاسِ ٱلْمُسْتَقِيمِ ذَٰلِكَ خَيْرٌ وَأَحْسَنُ تَأْوِيلًاAnd give full measure when you measure, and weigh with an even balance. That is the best [way] and best in result.