All places of worship (and all parts of the body with which one prostrates ) are for God, and all worship is due to Him alone, so do not worship anyone along with God
And know that all Masjids are for Allah. (Adoration, prostration, submission is due to Allah alone). Hence, invoke not anyone along with Allah. (9:17). ('Masjid' = Mosque = Places of worship = Collective acts of Prostration = Ways of Adoration = Obedience of Divine Commands = Centers of administering the Divine System)