Prayer: Can a Basement Factory Be Built Beneath a Masjid to Support Its Operations?

Practical Laws of Islam as per the teachings of Imam Khamenei

Prayer: Can a Basement Factory Be Built Beneath a Masjid to Support Its Operations?

Question #416:

The masjid does not have any properties through which its affairs could be run. The supervisory board has proposed digging a basement under the roofed section of the masjid in order to build a small factory and facilities for public utilities for the service of the masjid. Is this permissible?

Answer #416:

It is not permissible to dig a basement under the roofed section in order to set up a small factory or the like.

-Imam Khamenei, Practical Laws of Islam, Importance and Conditions of Prayer