مسند أحمد

It was narrated that ‘Ali (رضي الله عنه) said: The Messenger of Allah (ﷺ) was neither short nor tall; he had a large head, wavy hair, a big beard and a reddish complexion. There was a long line of hair running from his chest to his navel. He had large joints and large hands and feet. When he walked, he walked energetically as if walking downhill, I have never seen anyone like him before or since.