[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 evenings1
Translation: Saheeh International (English)
1 The term used here can refer to either afternoon or evening.
This lantern is lit in the mosques which Allah has ordered be kept clean from impurities and dirt, to be elevated, and to have His name remembered therein through the call to prayer, remembrance and prayer. There pray in them, seeking the pleasure of Allah, at the beginning and end of the day