Not Fasting During Female Menstrual Cycle
This prohibition is because of the state of impurity which cannot be shaken off until the menstrual cycle ends. For details watch the video. https://www.youtube.com/watch?v=ojJkEdaJCiE
JazakAllah brother. Just finished reading Tafseer of Javaid Sahab and Imam Ameen Ehsan Sahab which clarifies their point of view.