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 Sad — Ayah 78
وَإِنَّ عَلَيۡكَ لَعۡنَتِيٓ إِلَىٰ يَوۡمِ ٱلدِّينِ ٧٨
{ وَإِنَّ عَلَيْكَ لَعْنَتِي } أي: طردي وإبعادي { إِلَى يَوْمِ الدِّينِ } أي: دائما أبدا.