Surah Al-Mu'minun, ayah 102

23:102

فَمَن ثَقُلَتۡ مَوَٰزِينُهُۥ فَأُوْلَٰٓئِكَ هُمُ ٱلۡمُفۡلِحُونَ ١٠٢

Faman thaqulat mawāzīnuhū fa ulā'ika humul-muflihūn

And those whose scales are heavy [with good deeds] - it is they who are the successful.