Sahih Muslim
The Book of Virtue, Good Manners and Joining of the Ties of Relationship (Kitab Al-Birr was-Salat-I-wal-Adab)
Book Number: 032 / Hadith Number: 6332
Jabir b. Abdullah reported that a person happened to come to the mosque with arrows and their iron-ends were exposed, so he was commanded that he should grasp the pointed heads so that these might not do any harm to a Muslim.