running in confusion towards the Summoning Voice; [and] those who [now] deny the truth will exclaim, Calamitous is this Day!"

Hastening, with eyes transfixed, towards the Caller!- "Hard is this Day!", the Unbelievers will say.

Hastening toward the summoner; the disbelievers say: This is a hard day.

And certainly narratives have come to them, which should deter --

Racing ahead toward the Caller. The disbelievers will say, "This is a difficult Day."