Surah At-Takwir 81:14

عَلِمَتْ نَفْسٌ مَّآ أَحْضَرَتْ

A soul will [then] know what it has brought [with it].

Translation: Saheeh International

Tafsir

then a soul every soul at the time of the occurrence of the things mentioned which is the Day of Resurrection will know what it has presented of good or evil.

Excerpt from Tafsir al-Jalalayn, commentary on 81:14, via Quran.com. The reader has the full commentary and 9 more tafsirs.