The believers who stay at home—apart from those that suffer from a grave impediment—are not the equal of those who fight for the cause of God with their goods and their persons. God has given those that fight with their goods and their persons a higher rank than those who stay at home. God has promised all a good reward; but far richer is the recompense of those who fight for Him…. He that leaves his dwelling to fight for God and His apostle and is then overtaken by death, shall be rewarded by God…. The unbelievers are your inveterate enemies. (Koran 4:95–101)
