It belongs not to a believer to slay a believer, except it be by error. If any slays a believer by error, then let him set free a believing slave, and bloodwit is to be paid to his family unless they forgo it as a freewill offering. If he belong to a people at enmity with you and is a believer, let the slayer set free a believing slave. If he belong to a people joined with you by a compact, then bloodwit is to be paid to his family and the slayer shall set free a believing slave. But if he finds not the means, let him fast two successive months -- God's turning; God is All-knowing, All-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 you who have believed, when you go forth [to fight] in the cause of Allah, investigate; and do not say to one who gives you [a greeting of] peace "You are not a believer," aspiring for the goods of worldly life; for with Allah are many acquisitions. You [yourselves] were like that before; then Allah conferred His favor upon you, so investigate. Indeed Allah is ever, with what you do, Acquainted. 94 Among the believers, those who stay at home without a good reason are not equal to those who strive for the cause of God in person or with their property. To those who strive for His cause in person or with their property, God has granted a higher rank than to those who stay at home. God has promised that everyone will receive his proper share of the reward but He will grant a much greater reward to those striving for His cause than to those who stay home (for no reason). 95 For them are higher ranks with God, and forgiveness and grace; and God is forgiving and kind. 96