Musnad Ahmad 30:2832

'Abd al-Rahman ibn Mahdi narrated to us, he said: al-Muthanna ibn Sa'id narrated to us, and Bahz, he said: Hammam narrated to us, from Qatadah, from Abu Ayyub, from Abu Hurayrah, from the Prophet, peace and blessings of Allah be upon him, who said: "If one of you fights, let him avoid the face." Ibn Mahdi said: "For Allah, the Mighty and Majestic, created Adam in His image."