I registered my name under my uncle instead of my father on my ID card 40 years ago; is it obligatory for me to correct my name and my children's names now?

Question:
I ask Allah for you, Your Eminence, father. The questioner says: I changed my name more than forty years ago due to special circumstances, and I put my uncle's name instead of my father's name on my ID card. Now I want to correct my name, and after the approval of the competent authority, they saw that it is necessary to correct the names of all my sons and grandsons. The question is: Is it permissible for me to keep my name without correcting it?

Answer:
No, it is necessary, you must correct this matter. Your attribution to someone other than your father is a major sin with a severe warning. So you must correct it and repent to Allah the Exalted and Mighty, and correct your sons' names. You must leave this action. Some people do it in order to deceive in order to take money, and this is also another crime, which is lying and taking money by deception. And attributing oneself to someone other than one's father carries a severe warning, may Allah protect us from it. Yes.