حَدَّثَنَا آدَمُ، حَدَّثَنَا شُعْبَةُ، عَنْ ثَابِتٍ الْبُنَانِيِّ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ كَانَ النَّبِيُّ صلى الله عليه وسلم فِي مَسِيرٍ لَهُ فَحَدَا الْحَادِي، فَقَالَ النَّبِيُّ صلى الله عليه وسلم ‏"‏ ارْفُقْ يَا أَنْجَشَةُ، وَيْحَكَ، بِالْقَوَارِيرِ ‏"‏‏.‏
Translation
Narrated Anas bin Malik

There was a state of fear in Medina. Allah's Messenger (ﷺ) rode a horse belonging to Abu Talha (in order to see the matter). The Prophet (ﷺ) said, "We could not see anything, and we found that horse like a sea (fast in speed).