وَأَوفُوا الكَيلَ إِذا كِلتُم وَزِنوا بِالقِسطاسِ المُستَقيمِ ذٰلِكَ خَيرٌ وَأَحسَنُ تَأويلًا
And give full measure when you measure, and weigh with an even balance. That is the best [way] and best in result.
Waawfoo alkayla itha kiltum wazinoo bialqistasi almustaqeemi thalika khayrun waahsanu taweelan