Why are menstruating women and those in a state of major ritual impurity (junub) prohibited from entering the mosque, despite the existence of jurisprudential opinions that permit it out of necessity, the entry of non-Muslims, the fact that a Muslim is not impure, the need for seeking knowledge, modern hygiene facilities, and what has been narrated about the female Companions during the time of the Prophet, may Allah bless him and grant him peace?

The majority of scholars hold that it is impermissible for a person in a state of major ritual impurity (junub) or a menstruating woman (ha'id) to stay in the mosque, citing explicit texts as evidence. The matter differs concerning a non-believer due to specific evidence pertaining to them. However, both the junub and the ha'id are permitted to enter the mosque for the purpose of passing through or in cases of extreme necessity. Preventing a menstruating woman from staying in the mosque is not considered to be disheartening her; she can attend seminars and lectures elsewhere. A menstruating woman differs from a woman experiencing irregular bleeding (mustahadah) because the latter is considered ritually pure. A menstruating woman is commanded to attend the Eid prayers, while avoiding the prayer area.