In a heated argument between her and her husband, he slapped his own face with both his hands, so she asks about the Islamic ruling?

Question:
She says that in a heated argument between her and her husband, he slapped his own face with both his hands, and she says that this act caused her great pain, and she asks about the Islamic ruling? May Allah reward you with good.

Answer:
We do not know the reason. If the reason was distress at a calamity, this is a major sin among the major sins, because the Prophet (peace and blessings be upon him) forbade slapping the cheeks, tearing the clothes, and making the pre-Islamic wailing at calamities, and he commanded patience and seeking reward from Allah. So if he did this out of distress at a calamity, it is not permissible.
Likewise, if he struck his face out of anger and taking revenge on himself, this is not permissible; because the Prophet (peace and blessings be upon him) forbade striking the face, striking the faces of people and the faces of animals, how much more so his own face? He forbade striking the face, and exposing the face to anything that affects it, because it is the gathering place of the senses. And the Prophet (peace and blessings be upon him) said: The Prophet (peace and blessings be upon him) forbade striking the face, the faces of people, and his own face is even more so. As for if he did this by mistake, there is no harm in that, and there is no sin on him, but he should not return to such an act. Yes.