﴿ بِسْمِ ٱللَّهِ ٱلرَّحْمَٰنِ ٱلرَّحِيمِ يَٰٓأَيُّهَا ٱلْمُدَّثِّرُ ﴾

“O THOU [in thy solitude] enfolded!”

O you enveloped in your mantle the Prophet s al-muddaththir is actually al-mutadaththir but the tā’ has been assimilated with the dāl that is to say the one who is enwrapped in his clothes when the Revelation Gabriel comes down on him