Sahih al-Bukhari 3040
Narrated Anas:
Allah's Messenger (ﷺ) was the (most handsome), most generous and the bravest of all the people. Once the 
people of Medina got frightened having heard an uproar at night. So, the Prophet (ﷺ) met the people while 
he was riding an unsaddled horse belonging to Abu Talha and carrying his sword (slung over his 
shoulder). He said (to them), "Don't get scared, don't get scared." Then he added, "I found it (i.e the 
horse) very fast."
حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا حَمَّادٌ، عَنْ ثَابِتٍ، عَنْ أَنَسٍ ـ رضى الله عنه ـ قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم أَحْسَنَ النَّاسِ، وَأَجْوَدَ النَّاسِ، وَأَشْجَعَ النَّاسِ، قَالَ وَقَدْ فَزِعَ أَهْلُ الْمَدِينَةِ لَيْلَةً سَمِعُوا صَوْتًا، قَالَ فَتَلَقَّاهُمُ النَّبِيُّ صلى الله عليه وسلم عَلَى فَرَسٍ لأَبِي طَلْحَةَ عُرْىٍ، وَهُوَ مُتَقَلِّدٌ سَيْفَهُ فَقَالَ ‏"‏ لَمْ تُرَاعُوا، لَمْ تُرَاعُوا ‏"‏‏.‏ ثُمَّ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ وَجَدْتُهُ بَحْرًا ‏"‏‏.‏ يَعْنِي الْفَرَسَ‏.‏