An Nisa, 92 Ayah
4:92
وَمَا كَانَ لِمُؤۡمِنٍ أَن يَقۡتُلَ مُؤۡمِنًا إِلَّا خَطَـٔٗاۚ وَمَن قَتَلَ مُؤۡمِنًا خَطَـٔٗا فَتَحۡرِيرُ رَقَبَةٖ مُّؤۡمِنَةٖ وَدِيَةٞ مُّسَلَّمَةٌ إِلَىٰٓ أَهۡلِهِۦٓ إِلَّآ أَن يَصَّدَّقُواْۚ فَإِن كَانَ مِن قَوۡمٍ عَدُوّٖ لَّكُمۡ وَهُوَ مُؤۡمِنٞ فَتَحۡرِيرُ رَقَبَةٖ مُّؤۡمِنَةٖۖ وَإِن كَانَ مِن قَوۡمِۭ بَيۡنَكُمۡ وَبَيۡنَهُم مِّيثَٰقٞ فَدِيَةٞ مُّسَلَّمَةٌ إِلَىٰٓ أَهۡلِهِۦ وَتَحۡرِيرُ رَقَبَةٖ مُّؤۡمِنَةٖۖ فَمَن لَّمۡ يَجِدۡ فَصِيَامُ شَهۡرَيۡنِ مُتَتَابِعَيۡنِ تَوۡبَةٗ مِّنَ ٱللَّهِۗ وَكَانَ ٱللَّهُ عَلِيمًا حَكِيمٗا ٩٢
Wa Mā Kāna Limu'uminin 'An Yaqtula Mu'umināan 'Illā Khaţa'an ۚ Wa Man Qatala Mu'umināan Khaţa'an Fataĥrīru Raqabatin Mu'uminatin Wa Diyatun Musallamatun 'Ilá 'Ahlihi 'Illā 'An Yaşşaddaqū ۚ Fa'in Kāna Min Qawmin `Adūwin Lakum Wa Huwa Mu'uminun Fataĥrīru Raqabatin Mu'uminatin ۖ Wa 'In Kāna Min Qawmin Baynakum Wa Baynahum Mīthāqun Fadiyatun Musallamatun 'Ilá 'Ahlihi Wa Taĥrīru Raqabatin Mu'uminatin ۖ Faman Lam Yajid Faşiyāmu Shahrayni Mutatābi`ayni Tawbatan Mina Al-Lahi ۗ Wa Kāna Al-Lahu `Alīmāan Ĥakīmāan
And never is it for a believer to kill a believer except by mistake. And whoever kills a believer by mistake - then the freeing of a believing slave and a compensation payment presented to the deceased's family [is required] unless they give [up their right as] charity. But if the deceased was from a people at war with you and he was a believer - then [only] the freeing of a believing slave; and if he was from a people with whom you have a treaty - then a compensation payment presented to his family and the freeing of a believing slave. And whoever does not find [one or cannot afford to buy one] - then [instead], a fast for two months consecutively, [seeking] acceptance of repentance from Allah . And Allah is ever Knowing and Wise.