Q. I know that a woman cannot keep fasts whilst in Haidh-menstruation. Then, if she experiences menstruation whilst fasting, does she have to keep Qadha for the missed fasts in Haidh or not?
A. Yes. A woman cannot observe fasts whilst in Haidh (menstruation). However, she will make Qadha of the missed fasts. (Hidaayah)
N.B. In the Month or Ramadaan, a woman in Haidh (menstruation) will make Qadha of the missed fasts after the Month of Ramadaan.
Allah Ta’ala Knows Best
Mufti Ismaeel Bassa
themufti.com