What did Allah's Apostle (peace be upon him) find when he rode Abu Talha's horse to see the state of fear in Medina?
 Narrated Anas bin Malik:                     There was a state of fear in Medina. Allah's Apostle rode a horse belonging to Abu Talha (in order to see the matter). The Prophet said, "We could not see anything, and we found that horse like a sea (fast in speed).