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 Al-Layl — Ayah 1
وَٱلَّيۡلِ إِذَا يَغۡشَىٰ ١
Allah takes an oath on the night when it covers whatever is between the heavens and the earth with its darkness.