Yursalu 'alaikumaa shuwaazum min naarinw-wa nuhaasun falaa tantasiraan

Word By Word:

Yursalu: Will be sent

'alaikuma: against both of you

shuwaazum: a flame

min: of

naarin: fire

wa: and

nuhaasun: smoke

fala: and not

tantasiraan: you will (be able to) defend yourselves.

Translation:

On you will be sent (O ye evil ones twain!) a flame of fire (to burn) and a smoke (to choke): no defence will ye have:

Ayah Tafseer:

The word shuwaz, as used in the original, means the pure, smokeless flame, and nuhas is the gross smoke without a flame. These two things, one after the other, will be let loose upon the men and jinn, when they try to escape the accountability of Allah.

Source: Yusuf Ali Translations and Tafheemul Quran by Abul A'la Maududi