Is it permissible for a Muslim company owner to authorize a Christian employee to answer phone calls related to work during the Friday sermon and prayer, given the absence of nearby prayer rooms or mosques, and the presence of individuals affiliated with Islam who do not pray working in the company?

An employer should not permit a non-Muslim to answer calls during the Friday sermon because the majority of scholars hold that non-Muslims are addressed by the ancillary rulings of Islamic law, and some jurists have stated that Friday prayer is obligatory for non-Muslims. Therefore, if a Muslim employer allows a non-Muslim to answer the phone, he has permitted something that is religiously prohibited. It is also advisable to admonish Muslims who abandon prayer by explaining the gravity of their action, and to strive in inviting non-Muslims to Islam.