كتاب الفتن
Read the English translation first, with the original Arabic directly underneath.
Narrated Abu Musa:
The Prophet (ﷺ) said, "If anyone of you passed through our mosque or through our market while carrying arrows, he should hold the iron heads," or said, "..... he should hold (their heads) firmly with his hand lest he should injure one of the Muslims with it."
إِذَا مَرَّ أَحَدُكُمْ فِي مَسْجِدِنَا أَوْ فِي سُوقِنَا وَمَعَهُ نَبْلٌ فَلْيُمْسِكْ عَلَى نِصَالِهَا ـ أَوْ قَالَ فَلْيَقْبِضْ بِكَفِّهِ ـ أَنْ يُصِيبَ أَحَدًا مِنَ الْمُسْلِمِينَ مِنْهَا شَىْءٌ