What is the expiation for a woman whose husband had intercourse with her during the daytime in Ramadan, and she is unable to fast two consecutive months due to weakness and menstruation?

Sexual intercourse during the daytime in Ramadan invalidates the fast and necessitates both making up the fast (qada') and offering expiation (kaffarah). The expiation is: freeing a slave; if one cannot find a slave, then fasting for two consecutive months; if one is unable to do that, then feeding sixty poor people. It is not permissible to move from one form of expiation to another except in case of inability. If the woman was coerced, ignorant, or forgetful, there is no sin or expiation upon her. However, if she willingly complied with her husband, then she must make up the fast and offer expiation. If the woman is unable to fast due to health conditions, her expiation is feeding sixty poor people. The onset of menstruation during the expiatory fast does not break the sequence; rather, the woman completes her fast after purification.