Musannaf Ibn Abi Shayba 36:380

Shababa narrated to us, he said: Malik ibn Anas narrated to us, from al-Zuhri, from Anas, who said: The Messenger of Allah (may Allah bless him and grant him peace) entered Mecca in the year of the Conquest, and upon his head was a helmet. When he entered, he removed it. It was said to him: "O Messenger of Allah, this is Ibn Khatal clinging to the curtains of the Kaaba." He said: "Kill him."