﴿ فَتَوَلَّ عَنْهُمْ ۘ يَوْمَ يَدْعُ ٱلدَّاعِ إِلَىٰ شَىْءٍۢ نُّكُرٍ ﴾

“turn thou away from them. On the Day when the Summoning Voice will sum­mon [man] unto something that the mind cannot conceive,”

So turn away from them! this is the import of the preceding statement and it completes what is being said. On the day when the Summoner namely Isrāfīl yawma ‘the day’ is rendered accusative by yakhrujūna ‘they will emerge’ next verse summons to an awful thing read nukur or nukr in the sense of munkar ‘disagreeable’ a thing which the souls will find awful and this is the Reckoning;