وَاَوۡفُوۡا الۡـكَيۡلَ اِذَا كِلۡتُمۡ وَزِنُوۡا بِالۡقِسۡطَاسِ الۡمُسۡتَقِيۡمِؕ ذٰلِكَ خَيۡرٌ وَّاَحۡسَنُ تَاۡوِيۡلاً
And measure in full whenever you measure out (anything), and (when you weigh anything) weigh with a straight balance. This (honesty) is better and much better with regard to its consequence (as well).