Kur’an 7:8 — sura Al-A'raf, 8. ajet

وَٱلۡوَزۡنُ يَوۡمَئِذٍ ٱلۡحَقُّۚ فَمَن ثَقُلَتۡ مَوَٰزِينُهُۥ فَأُوْلَـٰٓئِكَ هُمُ ٱلۡمُفۡلِحُونَ

Mjerenje toga dana biće pravedno: oni čija dobra djela prevagnu, oni će šta žele postići;

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