The Holy Quran 73:6 — Surah Al-Muzzammil
Arabic text
إِنَّ نَاشِئَةَ ٱلَّيْلِ هِىَ أَشَدُّ وَطْـًٔا وَأَقْوَمُ قِيلًا
Translation
Undoubtedly, waking at night (for salaah) is extremely difficult (most effective for controlling the Nafs) and speech (du'aas and recitation of the Qur'aan) is most correctly spoken then (because it is a time when one is free of duties and disturbances).
Tafsir (excerpt) — Tafsir Usmani
The virtue of rising at night for worship: that is, rising at night is no easy task. It is a very heavy spiritual exercise and self-mortification, by which the ego is trampled and desires such as sleep and rest are crushed. Moreover, at this time supplication and remembrance of Allah come straight from the heart. The tongue and the heart are in harmony.
Preview. The full text opens with JavaScript enabled.