Ash-Shama'il Al-Muhammadiyah, Book 1, Hadith 5 (In-Book)

It is reported from Ali (Radiallahu Anhu): "Rasullullah (Sallallahu alaihe wasallam) was neither very tall nor very short. The soles of both feet were very fleshed. (This quality is praiseworthy in a man as it denotes strength and courage but is not praiseworthy for a woman). He had a large head. The joints of the bones was also large. There was a thin line of hair from the chest to the navel. When Rasulullah (Sallallahu alaihe wasallam) walked, it appeared that he was descending from a high place". Ali (Radiallahu Anhu) says: "I did not see anyone like him neither before him, nor after him".

حَدَّثَنَا مُحَمَّدُ بْنُ إِسْمَاعِيلَ، قَالَ‏:‏ حَدَّثَنَا أَبُو نُعَيْمٍ، قَالَ‏:‏ حَدَّثَنَا الْمَسْعُودِيُّ، عَنْ عُثْمَانَ بْنِ مُسْلِمِ بْنِ هُرْمُزَ، عَنْ نَافِعِ بْنِ جُبَيْرِ بْنِ مُطْعِمٍ، عَنْ عَلِيِّ بْنِ أَبِي طَالِبٍ، قَالَ‏:‏ لَمْ يَكُنِ النَّبِيُّ صلى الله عليه وسلم بِالطَّوِيلِ، وَلا بِالْقَصِيرِ، شَثْنُ الْكَفَّيْنِ وَالْقَدَمَيْنِ، ضَخْمُ الرَّأْسِ، ضَخْمُ الْكَرَادِيسِ، طَوِيلُ الْمَسْرُبَةِ، إِذَا مَشَى تَكَفَّأَ تَكَفُّؤًا، كَأَنَّمَا يَنْحَطُّ مِنْ صَبَبٍ، لَمْ أَرَ قَبْلَهُ، وَلا بَعْدَهُ مِثْلَهُ، صلى الله عليه وسلم‏.‏

also referenced under: Book 1, Hadith 5 (English)