كتاب المغازى
64  
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
(48)
Chapter: Where did the Prophet (saws) fix the flag on the day of the conquest of Makkah?
(48)
باب أَيْنَ رَكَزَ النَّبِيُّ صلى الله عليه وسلم الرَّايَةَ يَوْمَ الْفَتْحِ
Sahih al-Bukhari 4281

Narrated `Abdullah bin Mughaffal:

I saw Allah's Messenger (ﷺ) on the day of the Conquest of Mecca over his she-camel, reciting Surat-al-Fath in a vibrant quivering tone. (The sub-narrator, Mu'awiya added, "Were I not afraid that the people may gather around me, I would recite in vibrant quivering tone as he (i.e. `Abdullah bin Mughaffal) did, imitating Allah's Messenger (ﷺ).")

حَدَّثَنَا أَبُو الْوَلِيدِ، حَدَّثَنَا شُعْبَةُ، عَنْ مُعَاوِيَةَ بْنِ قُرَّةَ، قَالَ سَمِعْتُ عَبْدَ اللَّهِ بْنَ مُغَفَّلٍ، يَقُولُ رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَوْمَ فَتْحِ مَكَّةَ عَلَى نَاقَتِهِ، وَهْوَ يَقْرَأُ سُورَةَ الْفَتْحِ يُرَجِّعُ، وَقَالَ لَوْلاَ أَنْ يَجْتَمِعَ النَّاسُ حَوْلِي لَرَجَّعْتُ كَمَا رَجَّعَ‏.‏
Reference : Sahih al-Bukhari 4281
In-book reference : Book 64, Hadith 315
USC-MSA web (English) reference : Vol. 5, Book 59, Hadith 578
  (deprecated numbering scheme)