[Machine] Once, a group of people who were on a secret mission for the Messenger of Allah ﷺ approached a well in the morning. A man from the people of the well appeared and one of the Muslims apprehended him. The man said, "I am a Muslim," but he was killed. When they returned, they informed the Prophet ﷺ about what had happened. The Messenger of Allah ﷺ stood up to address the people, praised Allah and glorified Him, then said, "What is wrong with a Muslim killing another man while the latter is saying, 'I am a Muslim'? The man said this as a means of seeking refuge." Upon hearing this, the face of the Messenger of Allah ﷺ turned away, and he stretched out his right hand and said, "I swear by Allah, the one who kills a Muslim will never enter Paradise." He repeated this statement three times.  

أَنَّ سَرِيَّةً لِرَسُولِ اللهِ ﷺ غَشُوا أَهْلَ مَاءٍ صُبْحًا فَبَرَزَ رَجُلٌ مِنْ أَهْلِ الْمَاءِ فَحَمَلَ عَلَيْهِ رَجُلٌ مِنَ الْمُسْلِمِينَ فَقَالَ إِنِّي مُسْلِمٌ فَقَتَلَهُ فَلَمَّا قَدِمُوا أَخْبَرُوا النَّبِيَّ ﷺ بِذَلِكَ فَقَامَ رَسُولُ اللهِ ﷺ خَطِيبًا فَحَمِدَ اللهَ وَأَثْنَى عَلَيْهِ ثُمَّ قَالَ أَمَّا بَعْدُ فَمَا بَالُ الْمُسْلِمِ يَقْتُلُ الرَّجُلَ وَهُوَ يَقُولُ إِنِّي مُسْلِمٌ فَقَالَ الرَّجُلُ إِنَّمَا قَالَهَا مُتَعَوِّذًا فَصَرَفَ رَسُولُ اللهِ ﷺ وَجْهَهُ وَمَدَّ يَدَهُ الْيُمْنَى فَقَالَ أَبَى الله عَلَيَّ مَنْ قَتَلَ مُسْلِمًا ثَلَاثَ مَرَّاتٍ