Sahih al-Bukhari

Sahih al-Bukhari 454, 455

The presence of spearmen (with their spears) in the mosque (is permissible)
Arabic hadith text
حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ عَبْدِ اللَّهِ، قَالَ حَدَّثَنَا إِبْرَاهِيمُ بْنُ سَعْدٍ، عَنْ صَالِحٍ، عَنِ ابْنِ شِهَابٍ، قَالَ أَخْبَرَنِي عُرْوَةُ بْنُ الزُّبَيْرِ، أَنَّ عَائِشَةَ، قَالَتْ لَقَدْرَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَوْمًا عَلَى باب حُجْرَتِي، وَالْحَبَشَةُ يَلْعَبُونَ فِي الْمَسْجِدِ وَرَسُولُ اللَّهِ صلى الله عليه وسلم يَسْتُرُنِي بِرِدَائِهِ، أَنْظُرُ إِلَى لَعِبِهِمْ‏.‏زَادَ إِبْرَاهِيمُ بْنُ الْمُنْذِرِ حَدَّثَنَا ابْنُ وَهْبٍ، أَخْبَرَنِي يُونُسُ، عَنِ ابْنِ شِهَابٍ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، قَالَتْ رَأَيْتُ النَّبِيَّ صلى الله عليه وسلم وَالْحَبَشَةُ يَلْعَبُونَ بِحِرَابِهِمْ
Translation
Narrated `Aisha

Once I saw Allah's Messenger (ﷺ) at the door of my house while some Ethiopians were playing in the mosque (displaying their skill with spears). Allah's Messenger (ﷺ) was screening me with his Rida' so as to enable me to see their display. (`Urwa said that `Aisha said, "I saw the Prophet (ﷺ) and the Ethiopians were playing with their spears.")