What is the ruling on non-Muslims entering mosques in Western countries with the aim of introducing them to Islam, taking into consideration their taking of photographs and the presence of unveiled girls among them, and what is the ruling on placing mirrors on the ceiling of the mosque as an aesthetic architectural feature?

It is permissible for a non-Muslim to enter a mosque if there is a need or a benefit in their entry, such as inviting them to Islam, provided that their presence does not contradict the respect due to the mosque, and that no living beings are photographed.

Placing mirrors on the mosque ceiling involves concerns such as distracting hearts from devotion (khushu') and extravagance in spending. Decorating mosques is Islamically prohibited.