Bleeding that definitively ends before the Hanafi three-day minimum is treated as istihadah, not hayd.
A woman with istihadah is not exempt from prayer or fasting as a menstruating woman is, though ongoing bleeding may raise its own wudu rules. Those detailed rules belong to the next lesson.
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Menstruation: Duration, Worship, Cessation and Intervening Purity
Bleeding that definitively ends before the Hanafi three-day minimum is treated as istihadah, not hayd.
A woman with istihadah is not exempt from prayer or fasting as a menstruating woman is, though ongoing bleeding may raise its own wudu rules. Those detailed rules belong to the next lesson.