Simak ibn Harb said:

“I heard Jabir ibn Samura say: "Allah’s Messenger (ﷺ) was dali al-fam, ashkal al-'ain, manhus al-'aqib.” Shu'ba said: “I asked Simak: ‘What is dali al-fam?" He replied:"[It means] endowed with a grand and impressive mouth." I asked: "What is ashkal al 'ain?" He replied: "[It means] long in the slit of the eye." I asked: "What is manhus al-'aqib?" He said: "[It means] endowed with a lean heel.”

حَدَّثَنَا أَبُو مُوسَى مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ سِمَاكِ بْنِ حَرْبٍ، قَالَ‏:‏ سَمِعْتُ جَابِرَ بْنَ سَمُرَةَ، يَقُولُ‏:‏ كَانَ رَسُولُ اللهِ صلى الله عليه وسلم ضَلِيعَ الْفَمِ، أَشْكَلَ الْعَيْنِ، مَنْهُوسَ الْعَقِبِ‏.‏