It is not for a believer to slay another believer unless by mistake. And he who has slain a believer by mistake, his atonement is to set free from bondage a believing person and to pay blood-money to his heirs, unless they forgo it by way of charity. And if the slain belonged to a hostile people, but was a believer, then the atonement is to set free from bondage a believing person. And if the slain belonged to a (non-Muslim) people with whom you have a covenant, then the atonement is to pay the blood-money to his heirs, and to set free from bondage a believing person. But he who cannot (free a slave) should fast for two consecutive months. This is the penance ordained by Allah. Allah is All-Knowing, All-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 [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 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 For them are ranks, forgiveness, and favours from Him. Allah is All-Forgiving, All-Compassionate. 96