from Ibn 'Abbas that the Prophet ﷺ said: "On the Day of Judgement, the murdered will come with the murderer's scalp and his head in his hand, and his jugular vein flowing blood saying: 'O Lord! This one killed me!' Until he comes close to the Throne." So they mentioned repentance to Ibn 'Abbas, and he recited this Ayah: And whoever kills a believer intentionally then his recompense is Hell (4:93). He said: "This Ayah was not abrogated nor (its ruling) replaced so from where is his repentance?"
عَنِ النَّبِيِّ ﷺ قَالَ يَجِيءُ الْمَقْتُولُ بِالْقَاتِلِ يَوْمَ الْقِيَامَةِ نَاصِيَتُهُ وَرَأْسُهُ بِيَدِهِ وَأَوْدَاجُهُ تَشْخُبُ دَمًا يَقُولُ يَا رَبِّ هَذَا قَتَلَنِي حَتَّى يُدْنِيَهُ مِنَ الْعَرْشِ قَالَ فَذَكَرُوا لاِبْنِ عَبَّاسٍ التَّوْبَةَ فَتَلاَ هَذِهِ الآيَةََ (وَمَنْ يَقْتُلْ مُؤْمِنًا مُتَعَمِّدًا فَجَزَآؤُهُ جَهَبَّمُ) قَالَ وَمَا نُسِخَتْ هَذِهِ الآيَةُ وَلاَ بُدِّلَتْ وَأَنَّى لَهُ التَّوْبَةُ