An-Nur 24:36

Fee buyootin athina Allahu anturfaAAa wayuthkara feeha ismuhu yusabbihulahu feeha bilghuduwwi wal-asal

[Such niches are] in houses [i.e., mosques] which Allāh has ordered to be raised and that His name be mentioned [i.e., praised] therein; exalting Him within them in the morning and the evenings

(The guided people worship Allah) in the houses that Allah has permitted to be raised, and where His name is recounted and His purity is pronounced, in the morning and in the evening,