﴿ يَوْمَ يَتَذَكَّرُ ٱلْإِنسَٰنُ مَا سَعَىٰ ﴾

“on that Day man will [clearly] remember all that he has ever wrought;”

the day when man will remember yawma yatadhakkaru’l-insānu substitutes for idhā ‘when’ his efforts in the life of the world in the way of good or evil