Surah Al-A'raf 7:8

وَٱلْوَزْنُ يَوْمَئِذٍ ٱلْحَقُّ ۚ فَمَن ثَقُلَتْ مَوَٰزِينُهُۥ فَأُو۟لَـٰٓئِكَ هُمُ ٱلْمُفْلِحُونَ

And the weighing [of deeds] that Day will be the truth. So those whose scales are heavy - it is they who will be the successful.

Translation: Saheeh International

Tafsir

The weighing of deeds or of the scrolls of these deeds shall be — in a balance that has a tongue and two palms as scales as reported in a hadīth — on that day that is on the day of the questioning mentioned namely the Day of Resurrection the true weighing the fair weighing al-haqq ‘the true’ is an adjectival …

Excerpt from Tafsir al-Jalalayn, commentary on 7:8, via Quran.com. The reader has the full commentary and 9 more tafsirs.