Hadith
حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، أَنَّهُ قَالَ سُئِلَ أُسَامَةُ بْنُ زَيْدٍ - وَأَنَا جَالِسٌ، مَعَهُ - كَيْفَ كَانَ يَسِيرُ رَسُولُ اللَّهِ صلى الله عليه وسلم فِي حَجَّةِ الْوَدَاعِ حِينَ دَفَعَ قَالَ كَانَ يَسِيرُ الْعَنَقَ فَإِذَا وَجَدَ فَجْوَةً نَصَّ . قَالَ مَالِكٌ قَالَ هِشَامٌ وَالنَّصُّ فَوْقَ الْعَنَقِ .
Yahya related to me from Malik from Hisham ibn Urwa that his father said, "I was sitting with Usama ibn Zayd when some one asked him, 'How did the Messenger of Allah, may Allah bless him and grant him peace, travel when he went from Arafa to Muzdalifa during the farewell hajj?' and he replied, 'He went at a medium pace, but when he found a gap (in the crowds) he speeded up
Sahih · Salim al-Hilali
Muwatta Malik 881 ·Book 20, Hadith 177·Also available on sunnah.com·