حَدَّثَنِي عَبْدُ اللَّهِ بْنُ هَاشِمٍ، وَعَبْدُ الرَّحْمَنِ بْنُ بِشْرٍ الْعَبْدِيُّ، قَالاَ حَدَّثَنَا يَحْيَى، - وَهُوَ ابْنُ سَعِيدٍ الْقَطَّانُ - عَنِ ابْنِ جُرَيْجٍ، حَدَّثَنِي الْقَاسِمُ بْنُ أَبِي بَزَّةَ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، قَالَ قُلْتُ لاِبْنِ عَبَّاسٍ أَلِمَنْ قَتَلَ مُؤْمِنًا مُتَعَمِّدًا مِنْ تَوْبَةٍ قَالَ لاَ ‏.‏ قَالَ فَتَلَوْتُ عَلَيْهِ هَذِهِ الآيَةَ الَّتِي فِي الْفُرْقَانِ ‏{‏ وَالَّذِينَ لاَ يَدْعُونَ مَعَ اللَّهِ إِلَهًا آخَرَ وَلاَ يَقْتُلُونَ النَّفْسَ الَّتِي حَرَّمَ اللَّهُ إِلاَّ بِالْحَقِّ‏}‏ إِلَى آخِرِ الآيَةِ ‏.‏ قَالَ هَذِهِ آيَةٌ مَكِّيَّةٌ نَسَخَتْهَا آيَةٌ مَدَنِيَّةٌ ‏{‏ وَمَنْ يَقْتُلْ مُؤْمِنًا مُتَعَمِّدًا فَجَزَاؤُهُ جَهَنَّمُ خَالِدًا‏}‏ ‏.‏ وَفِي رِوَايَةِ ابْنِ هَاشِمٍ فَتَلَوْتُ هَذِهِ الآيَةَ الَّتِي فِي الْفُرْقَانِ‏{‏ إِلاَّ مَنْ تَابَ‏}‏

Sa'id b. Jubair reported: I said to Ibn Abbas: Will the repentance of that person be accepted who kills a believer intentionally? He said: No. I recited to him this verse of Sura al-Furqan (xix.):" And those who call not upon another god with Allah and slay not the soul which Allah has forbidden except in the cause of justice" to the end of the verse. He said: This is a Meccan verse which has been abrogated by a verse revealed at Medina:" He who slays a believer intentionally, for him is the requital of Hell-Fire where he would abide for ever," and in the narration of Ibn Hisham (the words are): I recited to him this verse of Sura al-Furqan:" Except one who made repentance." Translation Not Available

Book reference: Sahih Muslim Book 56 Hadith 7173
Web reference: Sahih Muslim Book 43 Hadith 3023 e