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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
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.