Commentary explaining the meaning of the ayahs. One passage often covers several ayahs, so neighbouring ayahs can show the same text.
Tafseer Al Saadi - Arabic tafsir for Surah Al-Muddaththir — Ayah 29
لَوَّاحَةٞ لِّلۡبَشَرِ ٢٩
{ لَوَّاحَةٌ لِلْبَشَرِ } أي: تلوحهم [وتصليهم] في عذابها، وتقلقهم بشدة حرها وقرها.