فَمَنْ يَعْمَلْ مِثْقَالَ ذَرَّةٍ خَيْرًا يَرَهُ وَمَنْ يَعْمَلْ مِثْقَالَ ذَرَّةٍ شَرًّا يَرَهُ
Whoever does a particle's weight of good will see it; whoever does a particle's weight of evil will see it. (al-Zalzalah 99:7–8)
Mithqāla dharrah denotes a minute amount. Both good and bad acts matter in the final disclosure of deeds.