Does a musalla take on the ruling of a mosque such that the greeting of the mosque is prescribed in it?

Question:
Honorable Shaykh, regarding a musalla where only one obligatory prayer is performed and the adhan is called, is the greeting of the mosque obligatory in it?

Answer:
A musalla is not a mosque and does not have the rulings of a mosque. Therefore, one does not pray the greeting of the mosque in it. Rather, if he wants to pray a voluntary prayer in general, he may do so. However, the rulings of the mosque are not prescribed for a musalla; this is specific to the mosque that is prepared for prayer on a permanent basis. It is a mosque with all its facilities, prayers are held in it, it has a regular imam, and it has a mu'adhdhin. This is the mosque. As for the temporary musalla in offices or elsewhere, it does not take on the rulings of the mosque. Yes.