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-Mursalat — Ayah 12
لِأَيِّ يَوۡمٍ أُجِّلَتۡ ١٢
For a great day which has been delayed, so that they can testify against their nations.