Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
quran:73:1 – In the name of Allah, the Entirely Merciful, the Especially Merciful.

O you who wraps himself ˹in clothing˺,  

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.
القرآن:٧٣:١ – بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ

يَا أَيُّهَا الْمُزَّمِّلُ  

{يا أيها المزمل} النبي وأصله المتزمل أُدغمت التاء في الزاي، أي المتلفف بثيابه حين مجيء الوحي له خوفا من لهيبته.