Quran 73:6 — Cloaked (Al-Muzzammil)

إِنَّ ناشِئَةَ الَّيلِ هِىَ أَشَدُّ وَطـًٔا وَأَقوَمُ قيلًا

The meditation at night is more effective, and more righteous.

[73:5] We will give you a heavy message.

[73:7] You have a lot of time during the day for other matters.