While passing through a mosque, (one should better) hold the arrowheads (with the hand)

Sahih al-Bukhari · Book 8 · Hadith 451

حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا سُفْيَانُ، قَالَ قُلْتُ لِعَمْرٍو أَسَمِعْتَ جَابِرَ بْنَ عَبْدِ اللَّهِ يَقُولُ مَرَّ رَجُلٌ فِي الْمَسْجِدِ وَمَعَهُ سِهَامٌ، فَقَالَ لَهُ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ أَمْسِكْ بِنِصَالِهَا ‏"‏‏.‏

Narrated `Amr: I heard Jabir bin `Abdullah saying, "A man passed through the mosque carrying arrows. Allah's Apostle said to him, 'Hold them by their heads.' "