Fighting for the Cause of Allah (Jihaad)

Bukhari :: Book 4 :: Volume 52 :: Hadith 109

Narrated Anas bin Malik:

Once there was a feeling of fright in Medina, so the Prophet borrowed a horse belonging to us called Mandub (and he rode away on it). (When the Prophet returned) he said, "I have not seen anything of fright and I found it (i.e. this horse) very fast."