4:92 wa maa kaana li mu'minin ay yaqtula mu'minan il-laa khaTa-aa* wa man qatala mu'minan khaTa-an fa taHriyru raqabatim mu'minatiw wa diyatum musal-lamatun ilaa ahlihii il-laa ay yaS-Sad-daquu* fain kaana min qawmin 'Aduw-wil lakum wa huwa mu'minun fa taHriyru raqabatim mu'minah* wa in kaana min qawmim baynakum wa baynahum miythaaqun fa diyatum musal-lamatun ilaa ahlihii wa taHriyru raqabatim mu'minah* fa mal lam yajid fa Siyaamu shahrayni mutataabi'Ayni tawbatam minal-laah* wa kaanal-laahu 'Aliyman Hakiymaa

Click here to play the verse

Ahmed Raza Khan: Mohammed Aqib Qadri:
It is not rightful for a Muslim to kill another Muslim, unless it occurs by mistake; and the one who mistakenly kills a Muslim must set free a Muslim slave and pay blood-money to the family of the slain, except if they forego it; and if the victim is of a people who are hostile to you, and the killer is a Muslim, then only the setting free of a Muslim slave (is obligatory); and if the victim is from a people between whom and you there is a treaty, then blood-money must be paid to his family and the setting free of a Muslim slave; therefore one who has no means must fast for two consecutive months; this is his penance before Allah; and Allah is All Knowing, Wise.

Yusuf Ali:
Never should a believer kill a believer; but (If it so happens) by mistake, (Compensation is due): If one (so) kills a believer, it is ordained that he should free a believing slave, and pay compensation to the deceased's family, unless they remit it freely. If the deceased belonged to a people at war with you, and he was a believer, the freeing of a believing slave (Is enough). If he belonged to a people with whom ye have treaty of Mutual alliance, compensation should be paid to his family, and a believing slave be freed. For those who find this beyond their means, (is prescribed) a fast for two months running: by way of repentance to Allah: for Allah hath all knowledge and all wisdom.

Pickthal:
It is not for a believer to kill a believer unless (it be) by mistake. He who hath killed a believer by mistake must set free a believing slave, and pay the blood-money to the family of the slain, unless they remit it as a charity. If he (the victim) be of a people hostile unto you, and he is a believer, then (the penance is) to set free a believing slave. And if he cometh of a folk between whom and you there is a covenant, then the blood-money must be paid unto his folk and (also) a believing slave must be set free. And whoso hath not the wherewithal must fast two consecutive months. A penance from Allah. Allah is Knower, Wise.