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 Ash-Shams — Ayah 3
وَٱلنَّهَارِ إِذَا جَلَّىٰهَا ٣
Allah also takes an oath on the day when it reveals whatever is on the face of the earth through its light.