Arabic (Original)
وَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِذَا قَاتَلَ أَحَدُكُمْ فَلْيَجْتَنِبْ الْوَجْهَ.
English Translation
The Messenger of Allah (peace be upon him) said: 'When one of you fights, let him avoid striking the face.'