"Abdur-Rahman bin Abi Laila told me to ask Ibn 'Abbas about two Verses: 'And whoever kills a believe4r intentionally, his recompense is Hell' I asked him and he said: 'Nothing of this has been abrogated.'(And I asked him about the Verse): 'And those who invoke not any other ilah (god) along with Allah, nor kill such person as Allah has forbidden, except by right. He said: 'This was revealed concerning the people of shirk.
عَنْ هَاتَيْنِ الآيَتَيْنِ { وَمَنْ يَقْتُلْ مُؤْمِنًا مُتَعَمِّدًا فَجَزَاؤُهُ جَهَنَّمُ } فَسَأَلْتُهُ فَقَالَ لَمْ يَنْسَخْهَا شَىْءٌ وَعَنْ هَذِهِ الآيَةِ { وَالَّذِينَ لاَ يَدْعُونَ مَعَ اللَّهِ إِلَهًا آخَرَ وَلاَ يَقْتُلُونَ النَّفْسَ الَّتِي حَرَّمَ اللَّهُ إِلاَّ بِالْحَقِّ } قَالَ نَزَلَتْ فِي أَهْلِ الشِّرْكِ