Surah An-Nazi'at 79:7

تَتْبَعُهَا ٱلرَّادِفَةُ

There will follow it the subsequent [one].

Translation: Saheeh International

Tafsir

and is followed by the Aftershock the second blast; between the two blasts is a span of forty years the sentence tatba‘uhā’l-rādifatu is a circumstantial qualifier referring to al-rājifa ‘the Tremor’ in other words the ‘day’ can adverbially accommodate both blasts and other events and so for this reason it can also …

Excerpt from Tafsir al-Jalalayn, commentary on 79:7, via Quran.com. The reader has the full commentary and 9 more tafsirs.