Al A'raf, 8 Ayah
7:8
وَٱلۡوَزۡنُ يَوۡمَئِذٍ ٱلۡحَقُّۚ فَمَن ثَقُلَتۡ مَوَٰزِينُهُۥ فَأُوْلَٰٓئِكَ هُمُ ٱلۡمُفۡلِحُونَ ٨
Wa Al-Waznu Yawma'idhin ۚ Al-Ĥaqqu Faman Thaqulat Mawāzīnuhu Fa'ūlā'ika Humu Al-Mufliĥūna
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.