The one in ihram who shaves or trims his hair, or has intercourse, while forgetting or being ignorant: is the fidyah (ransom payment) obligatory upon him?

Question:
Honorable Shaykh, may Allah grant you success. He says: The one in ihram who shaves or trims his hair, or has intercourse, while forgetting or being ignorant, is the fidyah (ransom payment) obligatory upon him, or is he excused? What is the stronger position in this matter?

Answer:
The school of thought holds that the fidyah (ransom payment) is obligatory upon him. Whatever involves destruction, the fidyah (ransom payment) is obligatory upon him. As for intercourse, one is not excused for forgetting. If he had intercourse during the day in Ramadan, he is not excused for forgetting; his fast is invalid, and he must fast two consecutive months. He is not excused for forgetting, nor for ignorance. Yes.