Commentary explaining the meaning of the ayahs. One passage often covers several ayahs, so neighbouring ayahs can show the same text.
Vietnamese Al-Mukhtasar in interpreting the Noble Quran tafsir for Surah Ash-Shams — Ayah 4
وَٱلَّيۡلِ إِذَا يَغۡشَىٰهَا ٤
Ngài thề bởi ban đêm khi nó bị che phủ tối mịt.