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 The recompense for he who kills a believer deliberately is Gehenna (Hell), he is eternal there. Allah will be angry with him and will curse him and prepare for him a great punishment. 93 [Hence,] O you who have attained to faith, when you go forth [to war] in God's cause, use your discernment, and do not - out of a desire for the fleeting gains of this worldly life - say unto anyone who offers you the greeting of peace, "Thou art not a believer" for with God there are gains abundant. You, too, were once in the same condition - but God has been gracious unto you. Use, therefore, your discernment: verily, God is always aware of what you do. 94 The holders back from among the believers, not having any injury, and those who strive hard in Allah's way with their property and their persons are not equal; Allah has made the strivers with their property and their persons to excel the holders back a (high) degree, and to each (class) Allah has promised good; and Allah shall grant to the strivers above the holders back a mighty reward: 95 in ranks standing before Him, forgiveness and mercy; surely God is All-forgiving, All-compassionate. 96