ʿAmr b. ʿAlī > ʿAbd al-Raḥman > Manṣūr b. Abū al-Aswad > Ḥaṣīn > Abū Ẓabyān > Usāmah b. Zayd

We sent the Messenger of Allah in an army to Al-Hurqat, a neighborhood of Juheina. When we were about to defeat them, a man from the Ansar (helpers) and I approached a man from them and he said, "There is no god but Allah." The Ansari stopped attacking him, and I thought that he said it to seek refuge, so I killed him. The Ansari then returned to the Prophet and informed him about it. The Prophet said to Osama, "O Osama, did you kill him after he said, 'There is no god but Allah'? How will you then deal with 'There is no god but Allah' on the Day of Judgment?" He kept repeating these words until I wished that I had not embraced Islam before that day.

أَخْبَرَنَا عَمْرِوُ بْنُ عَلِيٍّ قَالَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ قَالَ حَدَّثَنَا مَنْصُورُ بْنُ أَبِي الْأَسْوَدِ عَنْ حَصِينٍ عَنْ أَبِي ظَبْيَانَ قَالَ سَمِعْتُ أُسَامَةَ بْنَ زَيْدٍ يَقُولُ

بَعَثَنَا رَسُولُ اللهِ ﷺ فِي جَيْشٍ إِلَى الْحُرُقَاتِ حَيٍّ مِنْ جُهَيْنَةَ فَلَمَّا يَعْنِي هَزَمْنَاهُمِ ابْتَدَرْتُ أَنَا وَرَجُلٌ مِنَ الْأَنْصَارِ رَجُلًا مِنْهُمْ فَقَالَ لَا إِلَهَ إِلَّا اللهُ فَكَفَّ عَنْهُ الْأَنْصَارِيُّ وَظَنَنْتُ أَنَّهُ إِنَّمَا قَالَهَا تَعَوُّذًا فَقَتَلْتُهُ فَرَجَعَ الْأَنْصَارِيُّ إِلَى النَّبِيِّ ﷺ فَحَدَّثَهُ الْحَدِيثَ فَقَالَ النَّبِيُّ ﷺ يَا أُسَامَةُ قَتَلْتَ رَجُلًا بَعْدَ أَنْ قَالَ «لَا إِلَهَ إِلَّا اللهُ؟ كَيْفَ تَصْنَعُ بِلَا إِلَهَ إِلَّا اللهُ يَوْمَ الْقِيَامَةِ؟» فَمَا زَالَ يَقُولُ ذَلِكَ حَتَّى وَدِدْتُ أَنِّي لَمْ أَكُنْ أَسْلَمْتُ إِلَّا يَوْمَئِذٍ