Surah Al-Ma'arij (The Pathways of Heavenly Ascent), Verse 34

وَالَّذِیْنَ هُمْ عَلٰی صَلَاتِهِمْ یُحَافِظُوْنَ ۟

Wallazeena hum 'alaa salaatihim yuhaafizoon

“And those who guard (the sacredness) of their worship;-”

Quran 70:34 (Yusuf Ali Translation)