The Holy Quran 24:36 — Surah An-Nur
Arabic text
فِى بُيُوتٍ أَذِنَ ٱللَّهُ أَن تُرْفَعَ وَيُذْكَرَ فِيهَا ٱسْمُهُۥ يُسَبِّحُ لَهُۥ فِيهَا بِٱلْغُدُوِّ وَٱلْـَٔاصَالِ
Translation
In houses (Masaajid) which Allaah has commanded that they be exalted (honoured and respected) and that His name be taken in them, they (men whom Allaah guided) glorify Him morning and evening. (Showing respect to Masaajid even includes aspects such as entering them in a state of purity, avoiding worldly discussions in them and not entering them with an unpleasant odour. Taking Allaah's name and glorifying Him in the Masaajid includes performing salaah, engaging in Dhikr, reciting the Qur'aan and teaching Deen to people.)
Tafsir (excerpt) — Tafsir Usmani
Honouring and purifying the mosque: He commanded that they be honoured and purified, that is, that they be looked after and kept clean of every kind of filth and of idle deeds and words. Included in honouring the mosques is that on arriving there one should pray two rak'ahs (units of prayer) of tahiyyat al-masjid (the prayer of greeting the mosque).
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