Mu'awiya b. Qurra is reported to have heard 'Abdullah b. Mughaffal as saying: I saw the Messenger of Allah (ﷺ) reciting Surah Fath on his camel on the day of the Conquest of Mecca. He (the narrator) said: Ibn Mughaffal recited it and repeated it. Mu'awiya said: Had there been (no crowed of) people, I would have given a practical demonstration of that which Ibn Mughaffal had mentioned from the Messenger of Allah (ﷺ).
Source: sunnah.com
Other translations
Arabic
وَحَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، وَمُحَمَّدُ بْنُ بَشَّارٍ، قَالَ ابْنُ الْمُثَنَّى حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ مُعَاوِيَةَ بْنِ قُرَّةَ، قَالَ سَمِعْتُ عَبْدَ اللَّهِ بْنَ مُغَفَّلٍ، قَالَ رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَوْمَ فَتْحِ مَكَّةَ عَلَى نَاقَتِهِ يَقْرَأُ سُورَةَ الْفَتْحِ . قَالَ فَقَرَأَ ابْنُ مُغَفَّلٍ وَرَجَّعَ . فَقَالَ مُعَاوِيَةُ لَوْلاَ النَّاسُ لأَخَذْتُ لَكُمْ بِذَلِكَ الَّذِي ذَكَرَهُ ابْنُ مُغَفَّلٍ عَنِ النَّبِيِّ صلى الله عليه وسلم .
sunnah.com