(389) بَابُ يُقَالُ لِلرَّجُلِ وَالشَّيْءِ وَالْفَرَسِ: هُوَ بَحْرٌ
Anas ibn Malik, "There was some alarm in Madina and the Prophet,may Allah bless him and grant him peace, borrowed a horse belonging toAbu Talha called al-Mandub. He rode it, and when he returned he said, 'Wedid not see anything and he found the horse to be a sea."
Reference: Al-Adab Al-Mufrad 879
In-book reference: Book 37, Hadith 5
English translation: Book 37, Hadith 879