Hilchos Lashon Hara, Opening – negative commands (15)
If the person is an orphan or a widow - even a wealthy one - and one speaks about their faults in front of them, he breaks the negative commandment (Shemos 22:21), "Every widow and orphan do not afflict." The Torah commands us not to insult them or hurt them in any way. The punishment is written clearly in the Torah (Shemos 22:23), "My anger will stir and I will kill you, etc."