The Prophet ﷺ had a wide mouth, eyes with a reddish tinge in their whites, and slender heels.
حدثنا أحمد بن منيع حدثنا أبو قطن حدثنا شعبة عن سماك بن حرب
كان النبي ﷺ ضليع الفم أشكل العينين منهوش العقب
Muslim also narrated it in the Book of Virtues, chapter on the description of the mouth, eyes, and heels of the Prophet ﷺ, hadith no. 2339, through the hadith of Shubah, with similar wording.