Should the female friend who abandoned fasting and prayer during Ramadan due to a delusion of disbelief (waswas al-kufr) fast, or pay expiation, or do both, and what is incumbent upon her regarding the missed prayers?

A person afflicted with obsessive thoughts must ignore them and not pay attention to them, because going along with them leads to great evil. They will not harm him as long as he dislikes them and is averse to them.

The girl erred by abandoning prayer and fasting. She must repent to Allah and make up the days she missed in Ramadan. No expiation is required of her. She must also make up all the prayers she intentionally abandoned.