Sahih al-Bukhari 1666
صحيح البخاري#1666Sahihحَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، أَنَّهُ قَالَ سُئِلَ أُسَامَةُ وَأَنَا جَالِسٌ، كَيْفَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَسِيرُ فِي حَجَّةِ الْوَدَاعِ حِينَ دَفَعَ قَالَ كَانَ يَسِيرُ الْعَنَقَ، فَإِذَا وَجَدَ فَجْوَةً نَصَّ. قَالَ هِشَامٌ وَالنَّصُّ فَوْقَ الْعَنَقِ. قَالَ أَبُو عَبْدِ اللَّهِ فَجْوَةٌ مُتَّسَعٌ، وَالْجَمِيعُ فَجَوَاتٌ وَفِجَاءٌ، وَكَذَلِكَ رَكْوَةٌ وَرِكَاءٌ. مَنَاصٌ لَيْسَ حِينَ فِرَارٍ.
Narrated `Urwa:Usama was asked in my presence, "How was the speed of (the camel of) Allah's Messenger (ﷺ) while departing from `Arafat during the Hajjatul Wada`?" Usama replied, "The Prophet (ﷺ) proceeded on with a modest pace, and when there was enough space he would (make his camel) go very fast
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 25:147