Musnad Ahmad 32:1395

Abu al-Mughirah narrated to us, al-Awza'i narrated to us, Ishaq ibn Abdullah ibn Abi Talhah narrated to me, Anas ibn Malik narrated to me, he said: The Prophet, peace and blessings of Allah be upon him, entered the mosque, and he was wearing a Najrani cloak with a thick border. A Bedouin came from behind him and pulled the edge of his cloak with a strong pull, until the border left a mark on the side of the neck of the Messenger of Allah, peace and blessings of Allah be upon him. He said: "O Muhammad, give us from the wealth of Allah that you have." He said: The Prophet, peace and blessings of Allah be upon him, turned to him and smiled, then said: "Give him something."