Sahih Muslim Book - 1, Hadith - 277

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ حَدَّثَنَا أَبُو خَالِدٍ الْأَحْمَرُ ح و حَدَّثَنَا أَبُو كُرَيْبٍ وَإِسْحَاقُ بْنُ إِبْرَاهِيمَ عَنْ أَبِي مُعَاوِيَةَ كِلَاهُمَا عَنْ الْأَعْمَشِ عَنْ أَبِي ظِبْيَانَ عَنْ أُسَامَةَ بْنِ زَيْدٍ وَهَذَا حَدِيثُ ابْنِ أَبِي شَيْبَةَ قَالَ بَعَثَنَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي سَرِيَّةٍ فَصَبَّحْنَا الْحُرَقَاتِ مِنْ جُهَيْنَةَ فَأَدْرَكْتُ رَجُلًا فَقَالَ لَا إِلَهَ إِلَّا اللَّهُ فَطَعَنْتُهُ فَوَقَعَ فِي نَفْسِي مِنْ ذَلِكَ فَذَكَرْتُهُ لِلنَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَقَالَ لَا إِلَهَ إِلَّا اللَّهُ وَقَتَلْتَهُ؟ قَالَ قُلْتُ يَا رَسُولَ اللَّهِ إِنَّمَا قَالَهَا خَوْفًا مِنْ السِّلَاحِ قَالَ أَفَلَا شَقَقْتَ عَنْ قَلْبِهِ حَتَّى تَعْلَمَ أَقَالَهَا أَمْ لَا فَمَا زَالَ يُكَرِّرُهَا عَلَيَّ حَتَّى تَمَنَّيْتُ أَنِّي أَسْلَمْتُ يَوْمَئِذٍ قَالَ فَقَالَ سَعْدٌ وَأَنَا وَاللَّهِ لَا أَقْتُلُ مُسْلِمًا حَتَّى يَقْتُلَهُ ذُو الْبُطَيْنِ يَعْنِي أُسَامَةَ قَالَ قَالَ رَجُلٌ أَلَمْ يَقُلْ اللَّهُ { وَقَاتِلُوهُمْ حَتَّى لَا تَكُونَ فِتْنَةٌ وَيَكُونَ الدِّينُ كُلُّهُ لِلَّهِ } فَقَالَ سَعْدٌ قَدْ قَاتَلْنَا حَتَّى لَا تَكُونَ فِتْنَةٌ وَأَنْتَ وَأَصْحَابُكَ تُرِيدُونَ أَنْ تُقَاتِلُوا حَتَّى تَكُونُ فِتْنَةٌ.

It was narrated that Usamah bin Zaid - and this is the Hadith of Ibn Abi Shaibah - said: "The Messenger of Allah (s.a.w) sent us on a campaign, and in the morning we attacked Al-Huruqat of Juhainah. I caught up with a man and he said: 'La ilaha illallah,' but I stabbed him. Then I felt troubled by that, and I told the Prophet (s.a.w) about it. The Messenger of Allah (s.a.w) said: 'Did he say La ilaha illallah and you killed him?! I said: 'O Messenger of Allah, he only said it for fear of the weapon.' He said: 'Did you open his heart to find out whether he said it (out of fear) or not?' And he kept repeating it until I wished that I had become Muslim on that day.'' Sa'd said: "By Allah, I will not kill a Muslim until the one with the belly - meaning Usamah - approves of killing him." A man said: "Doesn't Allah say: "And fight them until there is no more Fitnah and the religion will all be for Allah Sa'd said: "We fought them so that there would be no Fitnah but you and your companions want to fight them so that there will be Fitnah."