Sahih Bukhari
Fighting for the Cause of Allah (Jihaad)
Volume: 004 / Book Number: 052 / Hadith Number: 74
Narrated Anas: The Prophet was the best, the bravest and the most generous of all the people. Once when the people of Medina got frightened, the Prophet rode a horse and went ahead of them and said, "We found this horse very fast."