Sunan an-Nasa'i, Book 48, Hadith 193 (In-Book) ⓘ

It was narrated that Al-Bara' said: "The Messenger of Allah [SAW] was a man of average height with broad shoulders, a thick beard and a reddish complexion, and his hair came down to his earlobes. I saw him in a red Hullah and I never saw anything more handsome than him."

أَخْبَرَنَا عَلِيُّ بْنُ الْحُسَيْنِ، عَنْ أُمَيَّةَ بْنِ خَالِدٍ، عَنْ شُعْبَةَ، عَنْ أَبِي إِسْحَاقَ، عَنِ الْبَرَاءِ، قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم رَجِلاً مَرْبُوعًا عَرِيضَ مَا بَيْنَ الْمَنْكِبَيْنِ كَثَّ اللِّحْيَةِ تَعْلُوهُ حُمْرَةٌ جُمَّتُهُ إِلَى شَحْمَتَىْ أُذُنَيْهِ لَقَدْ رَأَيْتُهُ فِي حُلَّةٍ حَمْرَاءَ مَا رَأَيْتُ أَحْسَنَ مِنْهُ ‏.‏