Abdullah bin Abbas (may Allah be pleased with them both) said: The people who steal from the spoils of war, their hearts become weak; and the people among whom adultery becomes widespread, death also becomes widespread among them; and the people who cheat in weights and measures, their sustenance is cut off; and the people who judge unjustly, bloodshed increases among them; and the people who break their covenants, their enemies prevail over them.