(To your Lord on that day), meaning: the Day of Resurrection, (is the destination), meaning: they are driven to the reckoning.
﴿إِلَى رَبك يَوْمئِذٍ﴾ يَعْنِي: يَوْم الْقِيَامَة ﴿المساق﴾ يساقون إِلَى الْحساب
