It was narrated from Muhammad bin ‘Ali that his father said: The Messenger of Allah (ﷺ) had a large head, big eyes, long eyelashes, reddish eyes, a thick beard, and a pinkish colour. When he walked he would lean forward as if he was walking uphill, and when he turned he would turn with his whole body. And he had large hands and feet.
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا يُونُسُ، حَدَّثَنَا حَمَّادٌ، عَنْ عَبْدِ اللَّهِ بْنِ مُحَمَّدِ بْنِ عَقِيلٍ، عَنْ مُحَمَّدِ بْنِ عَلِيٍّ، رَضِيَ اللَّهُ عَنْهُ عَنْ أَبِيهِ، قَالَ كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ضَخْمَ الرَّأْسِ عَظِيمَ الْعَيْنَيْنِ هَدِبَ الْأَشْفَارِ مُشْرَبَ الْعَيْنِ بِحُمْرَةٍ كَثَّ اللِّحْيَةِ أَزْهَرَ اللَّوْنِ إِذَا مَشَى تَكَفَّأَ كَأَنَّمَا يَمْشِي فِي صُعُدٍ وَإِذَا الْتَفَتَ الْتَفَتَ جَمِيعًا شَثْنَ الْكَفَّيْنِ وَالْقَدَمَيْنِ.
sunnah.com