Allah The All-Wise has decreed for women to undergo menstruation every month. During this period, women do not fast or pray ṣalāh. This is the command of Allah (SWT), which women should submit to and not feel ashamed of. If it wasn’t for menstruation, humanity and the Ummah wouldn’t continue. It is in fact from the mercy and kindness of Allah that women are given a break from some physical acts of worship during a time when they feel weaker and may experience severe pain.