100:4

فَأَثَرْنَ بِهِ نَقْعًا

Transliteration:

Faatharna bihi naqAAan

Word by Word:

Then raise thereby dust,

Translations:

thereby raising clouds of dust,

And raise the dust in clouds the while,

Then, therewith, with their trail of dust,

Then thereby they raise dust,

Stirring up thereby [clouds of] dust,