1. What is the shar’i rule about the non-Muslims entering the Musjid or jamaat khana or musalla for a visit or attending a nikaah or for cleaning purpose or else?
2. Is there any difference generally in the shar’i law between a Musjid and a jamat khana?
1. If they maintain all the respect for the musjid and cover their bodies well, it will be permissible.
2. A jamaat khana does not have any shar`ee significance.
And Allah Ta’ala (الله تعالى) knows best.