Sahih Muslim Book 30, Hadith Number 5770.

Chapter : Concerning the characteristic features of Allah’s Apostle (may peace be upon him), and he was the most handsome of the people.

Al-Bara’ reported that Allah’s Messenger (may peace be upon him) was of medium height, having broad shoulders, with his hair hanging down on the lobes of his ears. He put on a red mantle over him, and never have I seen anyone more handsome than Allah’s Apostle (may peace be upon him).