The ruling on one who swore to give his share of the inheritance in charity and did not do so

Question:
May Allah reward you. In his second question, he says: When my father passed away, I resolved and swore to myself that I would make my share of the inheritance a charity for him. After a period of time, and after the inheritance was distributed, I did not do so. Is there any blame on me for that?

Answer:
You owe an expiation if you did not carry out what you swore to carry out. You owe an expiation, and you must continue to carry it out for the remaining time. You expiate for the time that has passed. Yes.