No believer should kill another believer, unless it be by mistake. Anyone who kills a believer by mistake should free a believing slave and pay blood money to the victim's relatives unless they forego it as an act of charity. If the victim belongs to a people at war with you, but is a believer, then the compensation is to free a believing slave. If he belongs to a people with whom you have a treaty, then blood-money should be handed over to his relatives and a believing slave set free. Anyone who lacks the means must fast for two consecutive months. Such is the penance imposed by God. God is all knowing and wise. 92 And whoso slays a believer wilfully, his recompense is Gehenna, therein dwelling forever, and God will be wroth with him and will curse him, and prepare for him a mighty chastisement. 93 O People who Believe! When you go forth to fight in holy war, make a proper study, and do not say to the one who greets you, “You are not a Muslim,” – you seek the means of this worldly life; so with Allah are the bounties in plenty; you too were like this before, then Allah bestowed His favour on you, therefore you must make a proper study; indeed Allah knows whatever you do. 94 Those believers who stay behind, apart from those forced by necessity, are not equal to those who strive hard in God's cause with their possessions and their persons. God has given those who strive with their goods and their persons a higher rank than those who stayed behind. God has promised all a good reward; but far greater is the recompense of those who strive for Him -- 95 God will grant those who strive high ranks, forgiveness, and mercy. He is All-forgiving and All-merciful. 96