Ash-Shama'il Al-Muhammadiyah, Book 15, Hadith 105 (English) ⓘ

Hazrat Anas radiyallahu anhu reports that, on the day when Makkah was conquered, the Prophet of Allah sallallahu alaihe wasallam wore a helmet when they entered the city. (The Prophet of Allah sallallahu alaihe wasallam removed the helmet after being satisfied that everything was under control). Someone came to the Prophet of Allah sallallahu alaihe wasallam and said, "O' Messenger of Allah, this Ibn Khatl is holding the cover (black cloth) of the Ka'bah." The Prophet of Allah sallallahu alaihe wasallam replied, "Kill him.

حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، قَالَ‏:‏ حَدَّثَنَا مَالِكُ بْنُ أَنَسٍ، عَنِ ابْنِ شِهَابٍ، عَنْ أَنَسِ بْنِ مَالِكٍ‏:‏ أَنَّ النَّبِيَّ صلى الله عليه وسلم دَخَلَ مَكَّةَ وَعَلَيْهِ مِغْفَرٌ، فَقِيلَ لَهُ‏:‏ هَذَا ابْنُ خَطَلٍ مُتَعَلِّقٌ بِأَسْتَارِ الْكَعْبَةِ، فَقَالَ‏:‏ اقْتُلُوهُ‏.‏