The ruling on saying "May your religion be cursed"

Question:
May Allah reward you and bless you. This is also a woman who says that she got into an argument with another woman, and she said to her, "May your religion be cursed." She asks: What is the ruling on that? And is there anything required of me? And may Allah reward you with good.

Answer:
This is one of the common sayings on the tongues of some people, and they do not know the danger of this speech or the great danger of this word. Is there any Muslim who curses the religion of his Muslim brother? May Allah protect us from that. This is disbelief (kufr) if he intended Islam; in that case, it would be apostasy (riddah) from the religion. By saying this, he has insulted the religion of Islam. And even if he intended by this statement the person and his shortcoming in his religion, or if he intended the character of this person and his dealings, it is not permissible for anyone to curse the religion of his brother.
May Allah protect us from that. So it is obligatory (wajib) for the one who has become accustomed to that to repent to Allah and to leave this invalid (batil) saying and never return to it. Yes.