Surah Az-Zalzalah 99:5

بِأَنَّ رَبَّكَ أَوْحَىٰ لَهَا

Because your Lord has inspired [i.e., commanded] it.

Translation: Saheeh International

Tafsir

for its Lord will have inspired it that is He will have commanded her to do this — in a hadīth it is stated ‘It the earth shall testify to every single deed committed by every servant and handmaiden upon its surface’.

Excerpt from Tafsir al-Jalalayn, commentary on 99:5, via Quran.com. The reader has the full commentary and 9 more tafsirs.