How is the ability to fast determined in the hadith of the man who had intercourse with his wife in Ramadan?

The questioner : The questioner says: The hadith I referred to is about the man who had intercourse with his wife in Ramadan. It appears from it that the man is strong and that he is able to fast, because he is fasting Ramadan. However, the month passed over him without him being able to fast two consecutive months, especially since his inability to stand does not appear, because the Messenger of Allah (peace and blessings be upon him) asked him about his ability.

The Shaykh : Our answer to this is that we say to the brother: What makes you know that this man is not able? A person may not be able to fast despite having a strong desire, and how many people have we heard of who are thin and weak, yet they are able to have intercourse with intensity and strength. So it is not necessary that the ability to have intercourse means the person is able to fast. And how many people are there who cannot fast because they cannot bear thirst, or cannot bear hunger. This man may not be able to fast because he cannot bear hunger, and this eating may be what gives him the strength for intercourse. What do I know about this? In truth, this questioner, or this man who said to the Prophet (peace and blessings be upon him), "I am not able," may not be able to fast because he cannot bear being away from his wife, and that he is unable to hold back until night. This is an inability. And he may not be able for another reason in his body. The important thing is that the Messenger (peace and blessings be upon him) said, "Are you able?" And the person is responsible for himself before Allah. So we say to him: Are you able to fast two months? If he says, "I am not able," we say: Move on to feeding sixty poor people. And he is the one who holds himself accountable. Yes.