﴿ إِلَىٰ رَبِّكَ يَوْمَئِذٍ ٱلْمَسَاقُ ﴾

“at that time towards thy Sustainer does he feel impelled to turn!”

on that day to your Lord will be the driving of the souls al-masāq means al-sawq; this indicates the operator of the above idhā ‘when’ the meaning being ‘when the soul reaches the throat it will be driven towards the judgement of its Lord’.