Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: When the Prophet Muhammad (peace and blessings be upon him) arrived in Madinah, the people there used to cheat the most in measuring. So Allah Almighty revealed this verse: "Woe to those who give less in measure." After that, those people began to measure properly.
Hadith Referenceصحیح ابن حبان / كتاب البيوع / 4919
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيحسن - «أحاديث البيوع».فضيلة الشيخ العلّامة شُعيب الأرناؤوطحديث حسن