Is It Permissible to Serve Wedding Meals in a Masjid?
English:
Question #393:
In some areas, particularly in villages, people hold wedding ceremonies in masjids. That is, they perform all celebrations involving dance and music at home, but serve lunch or dinner in the masjid. Does Islamic law permit this?
Answer #393:
There is no problem, in itself, in serving food to guests in a masjid.
-Imam Khamenei, Practical Laws of Islam, Importance and Conditions of Prayer