Musnad Abu Ya'la al-Mawsili 108:204

'Amr al-Naqid narrated to us, Sufyan narrated to us, he said: I said to 'Amr, "Did you hear Jabir ibn 'Abd Allah saying: A man passed by with arrows in the mosque, so the Messenger of Allah (may Allah bless him and grant him peace) said to him: 'Hold onto their heads [the arrowheads].'"