The air conditioning units in our mosque have broken down, and there is no one available to repair them except a non-Muslim worker. Is it permissible to let him enter the mosque?

Question:
He says: Honorable Shaykh, may Allah grant you success, the air conditioning units in our mosque have broken down, and we do not have a Muslim worker to repair them, and there is no one available except a non-Muslim. Is it permissible for us to let him enter the mosque in order to repair them?

Answer:
There is no harm. There is no harm in letting the non-Muslim enter and fix the defect in the mosque. The Christians entered the Prophet’s (peace and blessings be upon him) mosque, sat with him, and made a truce with him. Also, Thumamah ibn Uthal was brought in before he embraced Islam and was tied up inside it before he embraced Islam. So there is no objection to a non-Muslim entering, provided his entry does not cause harm to the mosque or to the worshippers. Especially for a need. Yes.