Commentary explaining the meaning of the ayahs. One passage often covers several ayahs, so neighbouring ayahs can show the same text.
English Al-Mukhtasar tafsir for Surah At-Tur — Ayah 15
أَفَسِحۡرٌ هَٰذَآ أَمۡ أَنتُمۡ لَا تُبۡصِرُونَ ١٥
Is this punishment which you see magic, or are you not seeing it?