النّور — An-Nur Ayat 30
قُلْ لِّلْمُؤْمِنِيْنَ يَغُضُّوْا مِنْ اَبْصَارِهِمْ وَيَحْفَظُوْا فُرُوْجَهُمْۗ ذٰلِكَ اَزْكٰى لَهُمْۗ اِنَّ اللّٰهَ خَبِيْرٌۢ بِمَا يَصْنَعُوْنَ
Qul lil-mu'minīna yaguḍḍū min abṡārihim wa yaḥfaẓū furūjahum, żālika azkā lahum, innallāha khabīrum bimā yaṣna‘ūn(a).
"Tell the believing men to reduce [some] of their vision and guard their private parts. That is purer for them. Indeed, Allah is Acquainted with what they do."