It is not for a believer to kill another believer, except that it is by error. Whosoever kills a believer in error, let him free a believing slave, and ransom is to be handed to his family, unless they forgo being charitable. If he belonged to a people who are your enemies and is a believer then, the setting free of a believing slave. If he belonged to a people in which there is between you and them a treaty, then a ransom is to be handed to his family and the setting free of a believing slave. But, if he does not find (the means) let him fast two consecutive months in repentance to Allah. And Allah is the Knower, the Wise. 92 And whosoever slayeth a believer intentionally, His meed is Hell, as an abider therein; and Allah shall be wroth with him and shall curse him, and shall get ready for him a torment terrible. 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 Such believers as sit at home -- unless they have an injury -- are not the equals of those who struggle in the path of God with their possessions and their selves. God has preferred in rank those who struggle with their possessions and their selves over the ones who sit at home; yet to each God has promised the reward most fair; and God has preferred those who struggle over the ones who sit at home for the bounty of a mighty wage, 95 Ranks from Him and forgiveness and mercy; and Allah is ever Forgiving, Merciful. 96