Mukhtasar Bukhari

Sayyiduna Anas bin Malik (may Allah be pleased with him) says that (once) there was some fear in Madinah, so the Noble Prophet (peace and blessings of Allah be upon him) mounted our horse whose name was Mandub. He (peace be upon him) went out. When he returned, he said: "We did not see anything to be afraid of, and indeed we found this horse to be swift like a river."