Sahih Bukhari Volume 6, Book 65, Hadith 4592

حَدَّثَنَا آدَمُ بْنُ أَبِي إِيَاسٍ، حَدَّثَنَا شُعْبَةُ، حَدَّثَنَا مُغِيرَةُ بْنُ النُّعْمَانِ، قَالَ سَمِعْتُ سَعِيدَ بْنَ جُبَيْرٍ، قَالَ ‏{‏آيَةٌ‏}‏ اخْتَلَفَ فِيهَا أَهْلُ الْكُوفَةِ، فَرَحَلْتُ فِيهَا إِلَى ابْنِ عَبَّاسٍ فَسَأَلْتُهُ عَنْهَا فَقَالَ نَزَلَتْ هَذِهِ الآيَةُ ‏{‏وَمَنْ يَقْتُلْ مُؤْمِنًا مُتَعَمِّدًا فَجَزَاؤُهُ جَهَنَّمُ‏}‏ هِيَ آخِرُ مَا نَزَلَ وَمَا نَسَخَهَا شَىْءٌ‏.‏

Narrated By Said bin Jubair : The people of Kufa disagreed (disputed) about the above Verse. So I went to Ibn Abbas and asked him about it. He said, "This Verse: "And whoever kills a believer intentionally, his recompense is Hell." was revealed last of all (concerning premeditated murder) and nothing abrogated it."