The ruling on fasting as expiation for accidental killing on behalf of the one who caused it, if he dies

Question:
All right, let’s take Mansur from Ta’if. Please, my brother Mansur. Mustawir, please. Peace be upon you. Peace. I have a question, Honorable Shaykh Salih. I have a son who was involved in a car accident; he hit someone and the person died, and the matter was settled, meaning everything regarding the religion and everything regarding private and public rights, and so on. His mother has been fasting on his behalf for a month and ten days now. Is that permissible? So I asked, and they said it is fine, fast on his behalf.

Answer:
Yes, but she must complete it and keep the fasts consecutive. She must not break the fast, but rather continue it until she completes two consecutive months, sixty days. She must not break the fast; she must keep it up until she finishes it. Yes.