What is the ruling on a woman who becomes pure from menstruation during the time of the 'Isha' prayer?

The questioner:
May Allah reward you. A woman had her monthly period and became pure after 'Isha', that is, at approximately ten o'clock. Does she have to pray, or what?

The Shaykh:
Yes.

The questioner:
A woman had her monthly period and became pure after 'Isha', that is, at approximately ten o'clock. Does she have to pray, or what?

The Shaykh:
How did her period come, and then she became pure after 'Isha'? Does that mean the period continued with her? Was it a complete period, and when it ended, it coincided with the time of 'Isha', or what? Or does he mean that the time entered while she was pure, and then the blood came to her before she prayed? If that is the case, then when she becomes pure and performs ghusl, she prays the prayer whose time she caught up with; she makes up the prayer whose time she caught up with and the blood came to her before she prayed it, because it became obligatory upon her by the entry of the time, but menstruation prevented her from performing it, so it remained in her debt. When she becomes pure, she makes it up.