وَلَا تَبۡخَسُواْ ٱلنَّاسَ أَشۡيَآءَهُمۡ وَلَا تَعۡثَوۡاْ فِي ٱلۡأَرۡضِ مُفۡسِدِينَ
And do not depreciate for mankind (the value) of their things, (i.e., their goods) and do not perpetrate (mischief) in the earth (as) corruptors
Author: Muhammad Mahmoud Ghali