Quran 4:92 from Surah An-Nisaa on Divine Marvels.
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
English translation: And not is for a believer that he kills a believer except (by) mistake And whoever killed a believer (by) mistake then freeing (of) a slave believing and blood money (is to be) paid to his family unless that they remit (as) charity But if (he) was from a people hostile to you and he was a believer then freeing (of) a believing slave believing And if (he) was from a people between you and between them (is) a treaty then blood money (is to be) paid to his family and freeing (of) a slave believing And whoever (does) not find then fasting (for) two months consecutively (seeking) repentance from Allah and is Allah All-Knowing All-Wise
Transliteration: wama kana limu'minin an yaqtula mu'minan illa khata-an waman qatala mu'minan khata-an fatahriru raqabatin mu'minatin wadiyatun musallamatun ila ahlihi illa an yassaddaqu fa-in kana min qawmin aduwwin lakum wahuwa mu'minun fatahriru raqabatin mu'minatin wa-in kana min qawmin baynakum wabaynahum mithaqun fadiyatun musallamatun ila ahlihi watahriru raqabatin mu'minatin faman lam yajid fasiyamu shahrayni mutatabi'ayni tawbatan mina al-lahi wakana al-lahu aliman hakiman