Quran 70:29 from Surah Al-Ma'aarij on Divine Marvels.
وَٱلَّذِينَ هُمۡ لِفُرُوجِهِمۡ حَٰفِظُونَ
English translation: And those who [they] their modesty (are) guardians
Transliteration: wa-alladhina hum lifurujihim hafizuna