Q: Toward the end of a menstrual period, often it is not clear if the period has ended or not. This causes a frustrating problem: should she wait until she is sure the period has ended, even though she is risking missing a prayer, or should she make ghusl and pray even though it is possible the period has not yet ended? You see, if she chooses to be cautious, often she has to make multiple ghusls until she is finally sure.
A: Where she is not clear whether the haidh has ended or not then she may wait until the end of the salaah time to see if there is any further bleeding. If there is no more bleeding then she should thereafter take a ghusl. If there is any discharge after she made ghusl she should repeat the ghusl.
And Allah Ta'ala (الله تعالى) knows best.
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