Surah Al-Infitar 82:5

عَلِمَتْ نَفْسٌ مَّا قَدَّمَتْ وَأَخَّرَتْ

A soul will [then] know what it has put forth and kept back.

Translation: Saheeh International

Tafsir

a soul every soul will know at the time of the occurrence of the things mentioned which is the Day of Resurrection what it has sent ahead in the way of deeds and what it has left behind of these and did not do.

Excerpt from Tafsir al-Jalalayn, commentary on 82:5, via Quran.com. The reader has the full commentary and 9 more tafsirs.