It is not rightful for a Muslim to kill another Muslim, unless it occurs by mistake; and the one who mistakenly kills a Muslim must set free a Muslim slave and pay blood-money to the family of the slain, except if they forego it; and if the victim is of a people who are hostile to you, and the killer is a Muslim, then only the setting free of a Muslim slave (is obligatory); and if the victim is from a people between whom and you there is a treaty, then blood-money must be paid to his family and the setting free of a Muslim slave; therefore one who has no means must fast for two consecutive months; this is his penance before Allah; and Allah is All Knowing, Wise. 92 And he who slays a believer wilfully his reward is Hell, where he will abide. Allah's wrath is against him and He has cast His curse upon him, and has prepared for him a great chastisement. 93 O believers, when you are journeying in the path of God, be discriminating, and do not say to him who offers you a greeting, 'Thou art not a believer,' seeking the chance goods of the present life. With God are spoils abundant. So you were aforetime; but God has been gracious to you. So be discriminating; surely God is aware of the things you do. 94 Believers who stay behind, having no injury, are not equal to those who fight in the way of Allah with their wealth and their souls. Allah has preferred those who fight with their wealth and their souls a degree above those who stay behind (because of sickness). Yet to each, Allah has promised the most excellent (Paradise). And Allah has preferred those who fought over those who stayed behind with a great wage. 95 Ranks specially bestowed by Him, and Forgiveness and Mercy. For Allah is Oft-forgiving, Most Merciful. 96