The ruling on one who has intercourse with his wife after the Fajr adhan in Ramadan while unaware

This is (M. A. S.) from Afif who sent us this message saying: In Ramadan, after the Fajr adhan, I had intercourse with my wife, but I did not know that the adhan had been called. After half an hour, I confirmed that the adhan for the Fajr prayer had indeed been called. What is required of me in this situation?
Answer: You must make up the day, and she must make up the day. You must repent because you did not ensure you were cautious. So you must repent to Allah, and you must make up the day. You both must pay the expiation, which is freeing a believing slave. If you cannot do that, then fasting two consecutive months, each of you... you must free a slave and she must free a slave. If you cannot do that, then fasting two consecutive months, you and she, each of you must fast two consecutive months, unless she was forced. If she was coerced by force and violence, then the sin is on you and nothing is required of her. If you cannot fast, then feeding sixty poor people. You must feed thirty sa' and she must feed thirty sa'. Sixty sa' for you both, for sixty poor people, each person is given a sa', half of it on your behalf and half on her behalf. This is what is obligatory for you, along with repentance and seeking forgiveness, and making up the day. Yes.
The presenter: May Allah reward you.