The ruling on delaying making up fasts from Ramadan until the following Ramadan

Question : Honorable Shaykh, a person is thirteen years old, and he has to make up sixteen days from the past Ramadan, but he did not start making them up until the twenty-second day. In this case, the next Ramadan will arrive before he completes the days. Does he make up the remaining days after the second Ramadan? And is there a difference between an adult and a non-adult in this case? May Allah reward you with good.

Answer : Yes, there is a difference between an adult and a non-adult. If this man who is thirteen years old has not reached puberty, then he owes no make-up fasts; he is free to make them up if he wishes or not to make them up, because one who has not reached puberty is not obligated to fast, so he is not obligated to make up fasts. But if he is an adult, then it is obligatory for him to make up the fasts, and it is not permissible for him to delay them until after the second Ramadan. Based on this, we say to this person: If you were negligent in this delay because you did not start until after the twenty-second of Sha'ban, then if you were negligent, seek Allah's forgiveness. When Ramadan ends, complete the remainder that is due on you. How much is the remainder? Six days, because he fasted.
Seven days, from the twenty-third to the twenty-ninth, the total is seven, seven days, and six days remain for him to make up after this Ramadan, along with repentance and seeking forgiveness for what happened from him. Yes.