Narrated Abu Huraira:

While some Ethiopians were playing in the presence of the Prophet, 'Umar came in, picked up a stone and hit them with it. On that the Prophet ﷺ said, "O 'Umar! Allow them (to play)." Ma'mar (the sub-narrator) added that they were playing in the Mosque.

حَدَّثَنَا إِبْرَاهِيمُ بْنُ مُوسَى، أَخْبَرَنَا هِشَامٌ، عَنْ مَعْمَرٍ، عَنِ الزُّهْرِيِّ، عَنِ ابْنِ الْمُسَيَّبِ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ قَالَ بَيْنَا الْحَبَشَةُ يَلْعَبُونَ عِنْدَ النَّبِيِّ ﷺ بِحِرَابِهِمْ دَخَلَ عُمَرُ، فَأَهْوَى إِلَى الْحَصَى فَحَصَبَهُمْ بِهَا. فَقَالَ
" دَعْهُمْ يَا عُمَرُ ". وَزَادَ عَلِيٌّ حَدَّثَنَا عَبْدُ الرَّزَّاقِ أَخْبَرَنَا مَعْمَرٌ فِي الْمَسْجِدِ.