Abū ʿAlī al-Ḥusayn b. ʿAlī al-Ḥāfiẓ > Abū Khalīfah al-Faḍl b. Muḥammad b. Shuʿayb al-Qāḍī > Aḥmad b. Yaḥyá b. Ḥumayd > Ḥammād b. Salamah > Yūnus b. ʿUbayd > Ḥumayd b. Hilāl > Bishr b. ʿĀṣim > ʿUqbah b. Mālik

On the authority of the Prophet ﷺ , he said: "After that, what is the matter with a man killing another man while he says, 'I am a Muslim?' The killer said, 'O Messenger of Allah, he said it seeking refuge (from harm).' The Messenger of Allah ﷺ said: 'Thus did he utter it in a vain attempt to protect himself.' Then the Messenger of Allah ﷺ turned his face away from him. He said, 'Allah has forbidden the killing of a person who testifies that none has the right to be worshipped but Allah, and that I am the Messenger of Allah. Although he did not comment on it, Al-Dhahabi recognized it in his summary." – Remains Silent

حَدَّثَنَاهُ أَبُو عَلِيٍّ الْحُسَيْنُ بْنُ عَلِيٍّ الْحَافِظُ أَنْبَأَنَا أَبُو خَلِيفَةَ الْفَضْلُ بْنُ مُحَمَّدِ بْنِ شُعَيْبٍ الْقَاضِي ثنا أَحْمَدُ بْنُ يَحْيَى بْنِ حُمَيْدٍ ثنا حَمَّادُ بْنُ سَلَمَةَ عَنْ يُونُسَ بْنِ عُبَيْدٍ عَنْ حُمَيْدِ بْنِ هِلَالٍ عَنْ بِشْرِ بْنِ عَاصِمٍ عَنْ عُقْبَةَ بْنِ مَالِكٍ

عَنِ النَّبِيِّ ﷺ أَنَّهُ قَالَ أَمَّا بَعْدَ فَمَا بَالُ الرَّجُلِ يَقْتُلُ الرَّجُلَ وَهُوَ يَقُولُ أَنَا مُسْلِمٌ؟ فَقَالَ الْقَاتِلُ يَا رَسُولَ اللَّهِ إِنَّمَا قَالَهَا مُتَعَوِّذًا فَقَالَ رَسُولُ اللَّهِ ﷺ هَكَذَا وَكَرِهَ مَقَالَتَهُ وَحَوَّلَ وَجْهَهُ عَنْهُ فَقَالَ «أَبَى اللَّهُ عَلَى مَنْ قَتَلَ مُسْلِمًا أَبَى اللَّهُ عَلَى مَنْ قَتَلَ مُسْلِمًا» سكت عنه الذهبي في التلخيص – سكت عنه