The Book Pertaining to the Excellent Qualities of the Holy Prophet (may Peace be upon them) and His Companions (Kitab Al-Fada'il)
Muslim :: Book 30 : Hadith 5771
Al-Bara' reported: Never did I see anyone more handsome than Allah's Apostle (may peace be upon him) in the red mantle. His hair had been hanging down on the shoulders and his shoulders were very broad, and he was neither very tall nor short-statured. Ibn Kuraib said he had hair.