“After the warning and separation, comes the hitting – hitting that does not make her ugly. The prophet [Muhammad] said: ‘Do not hit the face and do not make her ugly.’ (Hadith) In other words, not hitting that will bring the police, and break her hand and cause bleeding, or hitting that makes the face ugly. No. As it is said [in a Hadith] ‘If not for this (i.e., the fear of retaliation), I would give you painful blows with a small brush.’ … The hitting is not meant to disfigure, harm, or degrade.”

http://www.wnd.com/2016/02/muslim-mufti-gives-instructions-for-beating-wives/?cat_orig=world