The Ruling on the Tawaf of a Menstruating Woman and an Invalid 'Umrah

Question:
I say: Honorable Shaykh, may Allah grant you success. A woman performed 'Umrah while she was young, and she performed tawaf and sa'y while she was menstruating. Her modesty prevented her from informing her family. After that, she performed another 'Umrah. The question is: This happened fifteen years ago, and she is now asking if she owes expiations for the prohibitions she committed between the first invalid 'Umrah and the second valid one?

Answer:
If she owes them, how many expiations are there? She asked about this at the time, because one who is in a state of major or minor ritual impurity cannot validly perform tawaf until he purifies himself from the minor or major impurity, because tawaf requires ritual purity. The Prophet (peace and blessings be upon him) said to 'A'ishah: So ritual purity is necessary. However, if she performed a valid 'Umrah after this one, it takes the place of the first one and suffices for it; the second one stands in place of the first invalid one.