Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
quran:99:8

And whoever does an atom's weight of evil will see it.  

and whoever does an atom’s weight of evil shall see it: he shall see its requital. Meccan or Medinese, consisting of 11 verses.
القرآن:٩٩:٨

وَمَنْ يَعْمَلْ مِثْقَالَ ذَرَّةٍ شَرًّا يَرَهُ  

{ومن يعمل مثقال ذرة شرا يره} ير جزاءه.

See similar narrations below:

Collected by Qurʾān
quran:99:7

So whoever does an atom's weight of good will see it,  

So whoever does an atom’s weight of good shall see it: he shall see its reward,
القرآن:٩٩:٧

فَمَنْ يَعْمَلْ مِثْقَالَ ذَرَّةٍ خَيْرًا يَرَهُ  

{فمن يعمل مثقال ذرة} زنة نملة صغيرة {خيرا يره} ير ثوابه.