Commentary explaining the meaning of the ayahs. One passage often covers several ayahs, so neighbouring ayahs can show the same text.
Italian Al-Mukhtasar in interpreting the Noble Quran tafsir for Surah Al-Infitar — Ayah 18
ثُمَّ مَآ أَدۡرَىٰكَ مَا يَوۡمُ ٱلدِّينِ ١٨
Poi, cosa ne sai del Giorno della Fede?!