Could you please give us the Hadith that the Rasul forbade slapping on the face?

Praise be to Allah, the Lord of the Worlds; and blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions.

Al Bukhari and Muslim narrated that the Prophet said: "He who slaps his cheeks, tears his clothes and follows the ways and traditions of the Days of Ignorance is not one of us."

In another narration the Prophet said:” If one of you fights against his brother he should avoid slapping him on his face.”
Allah knows best.