Sahih al-Bukhari 4184
Sahih al-Bukhari · Book 64: Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi) · The Ghazwa of Al-Hudaibiya
Narrated Nafi`:
حَدَّثَنَا مُسَدَّدٌ ، حَدَّثَنَا يَحْيَى ، عَنْ عُبَيْدِ اللَّهِ ، عَنْ نَافِعٍ ، عَنِ ابْنِ عُمَرَ ، أَنَّهُ أَهَلَّ وَقَالَ إِنْ حِيلَ بَيْنِي وَبَيْنَهُ لَفَعَلْتُ كَمَا فَعَلَ النَّبِيُّ صلى الله عليه وسلم حِينَ حَالَتْ كُفَّارُ قُرَيْشٍ بَيْنَهُ. وَتَلاَ {لَقَدْ كَانَ لَكُمْ فِي رَسُولِ اللَّهِ أُسْوَةٌ حَسَنَةٌ}
Ibn `Umar assumed Ihram and said, "If something should intervene between me and the Ka`ba, then I will do what the Prophet (ﷺ) did when the Quraish infidels intervened between him and (the Ka`ba). Then Ibn `Umar recited: "You have indeed in Allah's Messenger (ﷺ) A good example to follow." (33.21)