أَوْ زِدْ عَلَيْهِ وَرَتِّلِ الْقُرْآنَ تَرْتِيلًا
or add to it, and recite the Quran in a measured tone.
Agha Ali Puya Commentary
Commentary on Quran 73:4
[Pooya/Ali Commentary 73:4] (see commentary for verse 2)
The Enshrouded One
73. Al-Muzzammil
ال مزمل
al-Muzzammil (The Enwrapped One)
ٱلْمُزَّمِّل
73:4
ʾaw zid ʿalayhi wa-rattili l-qurʾāna tartīlan
or add to it, and recite the Quran in a measured tone.