﴿ عَلِمَتْ نَفْسٌۭ مَّا قَدَّمَتْ وَأَخَّرَتْ ﴾

“every human being will [at last] comprehend, what he has sent ahead and what he has held back [in this world].”

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.