Al-Muzzammil (Arabic: المزمل, “The Enshrouded One”, “Bundled Up”, “Enfolded”) is the seventy-third chapter (sūrah) of the Qur'an, containing 20 verses (āyāt), which are recognized by Muslims as the word of God (Allah).

Al-Muzzammil takes its name from the reference to Muhammad, in his cloak praying at night, in the opening verses of the chapter.

In the beginning of Al-Muzzammil (Quran 73), God expounds upon the merits of night prayer in the First Meccan Period.

In his famous “Geschichte des korans”, Theodor Nöldeke places this Sura in the First Meccan Period, with the exceptions of ayat 10, 11 and 20, which were added at a later time.

Hamiduddin Farahi, an Islamic scholar of the Indian subcontinent, is known for his work on the concept of nazm, or coherence, in the Quran.

According to Javed Ahmad Ghamidi The theme of this group is Warning the leadership of the Quraysh of the consequences of the Hereafter, and delivering glad tidings to Muhammad (sws) of the supremacy of the truth in Arabia.