Surah Al-A'raf Verse 8

وَالْوَزْنُ يَوْمَئِذٍ الْحَقُّ ۚ فَمَنْ ثَقُلَتْ مَوَازِينُهُ فَأُولَٰئِكَ هُمُ الْمُفْلِحُونَ

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