Musnad Ahmad 1099:0

Narrated Abu al-Tufayl ‘Amir ibn Wathilah: I saw the Messenger of Allah (ﷺ) and there is no one left on the face of the earth who saw him except me. I said: "What did you see of him?" He said: "I saw him in the valley of Hunayn." I said: "What was he like?" He said: "He was white, handsome, and moderate in stature."