Is it permissible for a menstruating woman to attend lessons in the mosques?

The questioner : Praise be to Allah, Lord of the worlds. My esteemed Shaykh, I have some questions with me. The first question, if Allah wills, is as follows: Some women who are menstruating or have their periods ask whether it is permissible for them to attend the Friday lesson, or the Saturday lesson, for example, or Sunday, while they are menstruating. Is it permissible for them to enter the mosque?

The Shaykh : Yes, it is permissible for them to do so, because menstruation does not prevent a woman from attending gatherings of knowledge, even if they are in the mosques. This is because a woman entering the mosque at a time when there is no evidence prohibiting it is permissible; on the contrary, there is evidence indicating permissibility. Among these proofs are two hadiths from the Lady Aisha (may Allah be pleased with her). The first is . The point of this hadith is that the Prophet (peace and blessings be upon him) did not prevent her from entering the best of the mosques, which is the Sacred Mosque, but he only prevented her from praying and circumambulating the House. Therefore, it contains evidence that the Prophet (peace and blessings be upon him) permitted her to enter the Sacred Mosque while preventing her only from prayer and circumambulation, which indicates that it is permissible for a woman—[a pause in the recording]—this is the first hadith indicating that it is permissible for a menstruating woman to enter any mosque, because the Prophet (peace and blessings be upon him) permitted the Lady Aisha to enter the Sacred Mosque while menstruating and did not prevent her except from prayer and circumambulation of the House. Thus, the ruling for other than the Sacred Mosque is permissible a fortiori.
The Shaykh: As for the second hadith, it is also, as I hinted at earlier, narrated by the Lady Aisha (may Allah be pleased with her). The first hadith is in Sahih al-Bukhari, and our second hadith is in Sahih Muslim. She said: The Prophet (peace and blessings be upon him) said to her one day: . She said: O Messenger of Allah, I am menstruating. He said, may the prayers and peace be upon him: . The intended meaning of "menstruation" here is the blood of menstruation. The blood of a menstruating woman is undoubtedly ritually impure, but the menstruating woman herself is not ritually impure. Therefore, it does not follow that if something ritually impure comes out of a person, the person herself is ritually impure. Thus, it is permissible for menstruating women to attend gatherings of knowledge, even if these gatherings are in one of the houses of Allah (Blessed and Exalted is He). The ruling is established as permissible based on these two authentic hadiths. Added to this is the well-known principle among scholars that the original ruling for things is permissibility, and the original state of the conscience is innocence, unless evidence arises that contradicts these two principles. How much more so when evidence has arisen that agrees with these two principles? Thus, the answer to the question concludes that it is permissible for a menstruating woman to enter the mosque to listen to religious lessons, to listen to the recitation of the Qur'an, and the like. This is the answer to this question.