في بُيوتٍ أَذِنَ اللَّهُ أَن تُرفَعَ وَيُذكَرَ فيهَا اسمُهُ يُسَبِّحُ لَهُ فيها بِالغُدُوِّ وَالآصالِ

[Such niches are] in mosques which Allah has ordered to be raised and that His name be mentioned therein; exalting Him within them in the morning and the evenings