(48, 49) باب مَا جَاءَ فِي كِتَابِ الْقِصَاصِ مِنَ الْمُجْتَبَى مِمَّا لَيْسَ فِي السُّنَنِ تَأْوِيلِ قَوْلِ اللَّهِ عَزَّ وَجَلَّ { وَمَنْ يَقْتُلْ مُؤْمِنًا مُتَعَمِّدًا فَجَزَاؤُهُ جَهَنَّمُ خَالِدًا فِيهَا }
It was narrated from Salim bin abi Ja'd that:
Ibn 'Abbas was asked about someone who killed a believer deliberately then he repented, believed and did righteous deeds, and followed true guidance. Ibn 'Abbas said: "There is no way he could repent! I heard your Prophet say; He (the victim) will come hanging onto his killer with his jugular veins flowing with blood and saying: "Ask him why he killed me." Then he said: "by Allah, Allah revealed it and never abrogated anything of it.
Reference: Sunan an-Nasa'i 4866
In-book reference: Book 45, Hadith 161
English translation: Vol. 5, Book 45, Hadith 4870