Hadith on Khawarij: Violent rebels recite Quran, but do not understand

Abu Sa’id al-Khudri reported: The Prophet, peace and blessings be upon him, said, “There will come a people from the east, who recite the Quran but it does not go beyond their throats. They will go out of the religion, just as an arrow pierces through its target, and they will not return to it, just as the arrow does not return to the bow.” It was said, “What will be their sign?” The Prophet said, “Their sign is shaving.” Or he said, “It is shearing.”

Source: Ṣaḥīḥ al-Bukhārī 7123

Grade: Sahih (authentic) according to Al-Bukhari

عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ رَضِيَ اللَّهُ عَنْهُ عَنْ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ يَخْرُجُ نَاسٌ مِنْ قِبَلِ الْمَشْرِقِ وَيَقْرَءُونَ الْقُرْآنَ لَا يُجَاوِزُ تَرَاقِيَهُمْ يَمْرُقُونَ مِنْ الدِّينِ كَمَا يَمْرُقُ السَّهْمُ مِنْ الرَّمِيَّةِ ثُمَّ لَا يَعُودُونَ فِيهِ حَتَّى يَعُودَ السَّهْمُ إِلَى فُوقِهِ قِيلَ مَا سِيمَاهُمْ قَالَ سِيمَاهُمْ التَّحْلِيقُ أَوْ قَالَ التَّسْبِيدُ

7123 صحيح البخاري كتاب التوحيد باب قراءة الفاجر والمنافق وأصواتهم وتلاوتهم لا تجاوز حناجرهم