On the day yawma substitutes for the previous yawma when they that is all creatures hear the Call of truth of the Resurrection — this will be Isrāfīl’s second blast and it may precede or follow his initial call — that day of the call and the hearing is the day of coming forth from the graves yawma ‘on the day is in the accusative because of an implied yunādī ‘when he will call’ that is to say they will come to know the consequence of their denial.