Sahih Muslim 1064cBook 12, Hadith 190
حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا جَرِيرٌ، عَنْ عُمَارَةَ بْنِ الْقَعْقَاعِ، بِهَذَا الإِسْنَادِ قَالَ وَعَلْقَمَةُ بْنُ عُلاَثَةَ وَلَمْ يَذْكُرْ عَامِرَ بْنَ الطُّفَيْلِ وَقَالَ نَاتِئُ الْجَبْهَةِ وَلَمْ يَقُلْ نَاشِزُ . وَزَادَ فَقَامَ إِلَيْهِ عُمَرُ بْنُ الْخَطَّابِ - رضى الله عنه - فَقَالَ يَا رَسُولَ اللَّهِ أَلاَ أَضْرِبُ عُنُقَهُ قَالَ " لاَ " . قَالَ ثُمَّ أَدْبَرَ فَقَامَ إِلَيْهِ خَالِدٌ سَيْفُ اللَّهِ فَقَالَ يَا رَسُولَ اللَّهِ أَلاَ أَضْرِبُ عُنُقَهُ قَالَ " لاَ " . فَقَالَ " إِنَّهُ سَيَخْرُجُ مِنْ ضِئْضِئِ هَذَا قَوْمٌ يَتْلُونَ كِتَابَ اللَّهِ لَيِّنًا رَطْبًا - وَقَالَ قَالَ عُمَارَةُ حَسِبْتُهُ قَالَ " لَئِنْ أَدْرَكْتُهُمْ لأَقْتُلَنَّهُمْ قَتْلَ ثَمُودَ " .
" There stood up 'Umar b. Khattab (Allah be pleased with him), and said: Should I not strike his neck? Upon this he said: No. Then he turned away, and Khalid the Sword of Allah stood up against him, and said: Prophet of Allah. shall I not strike off his neck? He said, No, and then said: A people would rise from his progeny who would recite the Book of Allah glibly and fluently. 'Umar said: I think he (the Holy Prophet) also said this: If I find them I would certainly kill them like Thamud."