Qur'an 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.”

Al-A'raaf 7:8 · Saheeh International