Musannaf Ibn Abi Shayba 18:107

Abu Bakr narrated to us, he said: Mu'tamir ibn Sulayman narrated to us, from Humran, from Iyas ibn Mu'awiyah, who said: "The *mudihah* (a wound that exposes the bone) is the same whether it is here or here." And Mu'tamir gestured with his hand toward his head and his face.