Hadithcore
Hadith #2118010

Abu Hurairah (RAA) narrated that the Messenger of Allah (ﷺ) said:

“When any of you fights, he must avoid (striking) the face.” Agreed upon.

وَعَنْ أَبِي هُرَيْرَةَ ‏- رضى الله عنه ‏- قَالَ: قَالَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-{ إِذَا قَاتَلَ أَحَدُكُمْ, فَلْيَتَجَنَّبِ اَلْوَجْهَ } مُتَّفَقٌ عَلَيْهِ.‏ [1]‏ .‏

References2 variants
Sunnah.com reference
Book 16, Hadith 55
Arabic/English book reference
Book 16, Hadith 1534