The Holy Quran 70:34 — Surah Al-Ma'arij
Arabic text
وَٱلَّذِينَ هُمْ عَلَىٰ صَلَاتِهِمْ يُحَافِظُونَ
Translation
...and who guard (the time, condition and method of) their salaah (ensure that the time and method of performing salaah are correct and they never allow any salaah to pass by unperformed).
Tafsir (excerpt) — Tafsir Usmani
that is, they keep track of the times of the prayers and their conditions and etiquettes, and they protect their outward form and inner reality from being lost.
Preview. The full text opens with JavaScript enabled.