Sahih Muslim Book 32, Hadith Number 6325.

Chapter : It is forbidden to strike at the face.

This hadith has been transmitted on the authority of Abu Huraira and in the hadith transmitted on the authority of Ibn Hatim Allah’s Apostle (may peace be upon him) is reported to have said: When any one of you fights with his brother, he should avoid his face for Allah created Adam in His own image.