Commentary explaining the meaning of the ayahs. One passage often covers several ayahs, so neighbouring ayahs can show the same text.
Tafseer Al Saadi - Russian tafsir for Surah An-Nazi'at — Ayah 18
هَلۡ أَتَىٰكَ حَدِيثُ مُوسَىٰٓ ١٥
إِذۡ نَادَىٰهُ رَبُّهُۥ بِٱلۡوَادِ ٱلۡمُقَدَّسِ طُوًى ١٦
ٱذۡهَبۡ إِلَىٰ فِرۡعَوۡنَ إِنَّهُۥ طَغَىٰ ١٧
فَقُلۡ هَل لَّكَ إِلَىٰٓ أَن تَزَكَّىٰ ١٨
You are reading tafsir of 4 ayahs: 79:15
to 79:18.
Этим вопросом Господь подтвердил правдивость рассказа о пророке Мусе.