Surah Al-Mutaffifin, ayah 3

83:3

وَإِذَا كَالُوهُمۡ أَو وَّزَنُوهُمۡ يُخۡسِرُونَ ٣

Wa idhā kālūhum aw wazanūhum yukhsirūn

But if they give by measure or by weight to them, they cause loss.