Sawm of a menstruating woman who is purified before dawn

Q 4: What is the ruling on a menstruating woman who becomes pure before Fajr (Dawn) Prayer? Should she fast this day?

A: She should fast this day and perform Ghusl (ritual bath following major ritual impurity) even after the light of Fajr appears. (Part No. 10; Page No. 328) Postponing performing Ghusl until after the light of Fajr appears does not affect Sawm (Fast).