A person was afflicted with a mental illness that affected his dealings with his father, and now he is being treated and has improved; is he sinful for what happened in the past?

Question:
He says: I was afflicted with a mental illness that affected my dealings, especially with my father. I do not know how to eat with him, and sometimes I do not speak to him, while at other times I speak to him harshly, but he does not consider my condition. I was affected to the point that I came to dislike his body touching mine during prayer because he does so intentionally. I have been treated, and I am now going from good to better. Am I sinful for what happened from me, given the condition I described? May Allah reward you with good.

Answer:
If what you mentioned about your treatment of your father was due to a mental illness, then you are excused for this, because Allah, Glorified and Exalted is He, says: . Illness is an excuse, and mental or psychological illness is an excuse for what happened from you. However, since Allah has healed you and you have manifested the healing, you must be kind to your father. Also, you must explain to your father the reason for your aversion to him, or the reason why you are upset with him, so that he may excuse you for this. Do not leave the matter vague or unknown before him, so that he becomes angry with you or holds a grudge against you because you did not explain the reason to him. So you must explain it. There is no blame on you for what happened, and you are excused, and praise be to Allah. Yes, may Allah reward you with good, and may Allah reward you.