70:15

كَلَّا إِنَّهَا لَظَىٰ

Transliteration:

Kalla innaha latha

Word by Word:

By no means! Indeed, it (is) surely a Flame of Hell,

Translations:

But nay! Verily, all [that awaits him] is a raging flame,

By no means! for it would be the Fire of Hell!-

But nay! for lo! it is the fire of hell

By no means! Surely it is a flaming Fire,

No! Indeed, it is the Flame [of Hell],