It is not for a believer to take a believer's life except by mistake; and he who kills a believer by mistake should free a slave who is a believer, and pay blood-money to the victim's family unless they forego it as an act of charity. If he belonged to a community hostile to you but was himself a believer, then a slave who is a believer should be freed. In case he belonged to a people with whom you have a treaty, then give blood-money to his family and free a believing slave. But he who has no means (to do so) should fast for a period of two months continuously to have his sins forgiven by God, and God is all-knowing and all-wise. 92 But whoever deliberately slays another believer, his requital shall be hell, therein to abide; and God will condemn him, and will reject him, and will prepare for him awesome suffering. 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 Not equal are those believers remaining [at home] - other than the disabled - and the mujahideen, [who strive and fight] in the cause of Allah with their wealth and their lives. Allah has preferred the mujahideen through their wealth and their lives over those who remain [behind], by degrees. And to both Allah has promised the best [reward]. But Allah has preferred the mujahideen over those who remain [behind] with a great reward - 95 God will grant those who strive high ranks, forgiveness, and mercy. He is All-forgiving and All-merciful. 96