Surah Al-Muzzammil 73:1

يَـٰٓأَيُّهَا ٱلْمُزَّمِّلُ

O you who wraps himself [in clothing]

Translation: Saheeh International

Tafsir

O you enwrapped in your garment! the Prophet al-muzzammil is actually al-mutazammil but the tā’ has been assimilated with the zāy that is to say the one who wraps himself up in his clothes when the Revelation Gabriel comes to him in fear of him because of his awe-inspiring presence.

Excerpt from Tafsir al-Jalalayn, commentary on 73:1, via Quran.com. The reader has the full commentary and 9 more tafsirs.