Al-Mu'minun · Ayah 102
فَمَن ثَقُلَتْ مَوَٰزِينُهُۥ فَأُو۟لَٰٓئِكَ هُمُ ٱلْمُفْلِحُونَ
And those whose scales are heavy [with good deeds] - it is they who are the successful.
Quran 23:102 (Al-Mu'minun) · Saheeh International, Noor International Center (QuranEnc v1.1.2)