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كتاب استتابة المرتدين والمعاندين وقتالهم
88  
Apostates
(7)
Chapter: Whoever gave up fighting against Al-Khawarij in order to create intimacy
(7)
باب مَنْ تَرَكَ قِتَالَ الْخَوَارِجِ لِلتَّأَلُّفِ، وَأَنْ لاَ يَنْفِرَ النَّاسُ عَنْهُ
Sahih al-Bukhari 6934

Narrated Yusair bin `Amr:

I asked Sahl bin Hunaif, "Did you hear the Prophet (ﷺ) saying anything about Al-Khawarij?" He said, "I heard him saying while pointing his hand towards Iraq. "There will appear in it (i.e, Iraq) some people who will recite the Qur'an but it will not go beyond their throats, and they will go out from (leave) Islam as an arrow darts through the game's body.' "

حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا عَبْدُ الْوَاحِدِ، حَدَّثَنَا الشَّيْبَانِيُّ، حَدَّثَنَا يُسَيْرُ بْنُ عَمْرٍو، قَالَ قُلْتُ لِسَهْلِ بْنِ حُنَيْفٍ هَلْ سَمِعْتَ النَّبِيَّ صلى الله عليه وسلم يَقُولُ فِي الْخَوَارِجِ شَيْئًا قَالَ سَمِعْتُهُ يَقُولُ ـ وَأَهْوَى بِيَدِهِ قِبَلَ الْعِرَاقِ ـ ‏ "‏ يَخْرُجُ مِنْهُ قَوْمٌ يَقْرَءُونَ الْقُرْآنَ لاَ يُجَاوِزُ تَرَاقِيَهُمْ، يَمْرُقُونَ مِنَ الإِسْلاَمِ مُرُوقَ السَّهْمِ مِنَ الرَّمِيَّةِ ‏"‏‏.‏
Reference : Sahih al-Bukhari 6934
In-book reference : Book 88, Hadith 16
USC-MSA web (English) reference : Vol. 9, Book 84, Hadith 68
  (deprecated numbering scheme)