Sahih Bukhari Volume 1, Book 8, Hadith 470

حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ، قَالَ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا الْجُعَيْدُ بْنُ عَبْدِ الرَّحْمَنِ، قَالَ حَدَّثَنِي يَزِيدُ بْنُ خُصَيْفَةَ، عَنِ السَّائِبِ بْنِ يَزِيدَ، قَالَ كُنْتُ قَائِمًا فِي الْمَسْجِدِ فَحَصَبَنِي رَجُلٌ، فَنَظَرْتُ فَإِذَا عُمَرُ بْنُ الْخَطَّابِ فَقَالَ اذْهَبْ فَأْتِنِي بِهَذَيْنِ‏.‏ فَجِئْتُهُ بِهِمَا‏.‏ قَالَ مَنْ أَنْتُمَا ـ أَوْ مِنْ أَيْنَ أَنْتُمَا قَالاَ مِنْ أَهْلِ الطَّائِفِ‏.‏ قَالَ لَوْ كُنْتُمَا مِنْ أَهْلِ الْبَلَدِ لأَوْجَعْتُكُمَا، تَرْفَعَانِ أَصْوَاتَكُمَا فِي مَسْجِدِ رَسُولِ اللَّهِ صلى الله عليه وسلم

Narrated By Al-Sa'ib bin Yazid : I was standing in the mosque and somebody threw a gravel at me. I looked and found that he was 'Umar bin Al-Khattab. He said to me, "Fetch those two men to me." When I did, he said to them, "Who are you? (Or) where do you come from?" They replied, "We are from Ta'if." 'Umar said, "Were you from this city (Medina) I would have punished you for raising your voices in the mosque of Allah's Apostle."