Commentary explaining the meaning of the ayahs. One passage often covers several ayahs, so neighbouring ayahs can show the same text.
Tafsir Ibne Kathir tafsir for Surah Al-Mursalat — Ayah 45
وَيۡلٞ يَوۡمَئِذٖ لِّلۡمُكَذِّبِينَ ٤٥
﴾وَيْلٌيَوْمَئِذٍلِّلْمُكَذِّبِينَ﴿ «Горе в тот день обвиняющим во лжи!».