سَيَصْلَى نَارًا ذَاتَ لَهَبٍ
He will enter a flaming Fire. (111:3)
Sa- marks futurity; yaṣlā is an imperfect verb with an understood subject referring back to the previously named individual. Verse 1 used a forceful perfect expression; this verse specifies the consequence in explicitly future terms.
The passage progresses from condemnation to a vivid result. The future particle should not be reduced to an ordinary present-tense event: it is part of the warning’s temporal force.