Is there a room inside the mosque? Is it permissible to sit in it during menstruation?

Question:
May Allah reward you. Your Eminence the Shaykh, the questioner says: I am a teacher of Qur'an memorization in a mosque, and there is a room inside the mosque. Is it permissible to sit in it during menstruation for the purpose of teaching the Noble Qur'an? May Allah reward you with good.

Answer:
It is permissible for a menstruating woman to enter the mosque. By "mosque" is meant everything that is within the boundary and the surrounding wall of the mosque. Everything that is within the surrounding wall of the mosque is part of the mosque. The room whose door opens onto the mosque is part of the mosque. As for the adjacent room whose door is outside the mosque, and which is merely adjacent, that is not part of the mosque. It is like if your house were next to the mosque, with only the wall between you.