Musnad Abu Ya'la al-Mawsili 243:70

Abu Kurayb narrated to us, Abu Usamah narrated to us, from Burayd, from Abu Burdah, from Abu Musa, from the Prophet (peace be upon him), who said: "If one of you passes through our mosque or our marketplace while having arrows with him, let him hold onto their heads," or he said, "let him grasp them with his palm, so that nothing of them may strike anyone among the Muslims."