He will [enter to] burn in a Fire of [blazing] flame
Tafseer
{ سيصلى ناراً ذات لهب } أي تلهب وتوقد فهي مآل تكنيته لتلهب وجهه إشراقاً وحمرة.
{He will burn in a Fire of blazing flames} meaning it will burn and ignite, and this is the outcome of his nickname, which will ignite his face with radiance and redness.