Quran 34:30 — Sheba (Saba')

Say, "You have a specific time, on a specific day, that you cannot delay by one hour, nor advance."

[34:29] They challenge, "When will this promise come to pass, if you are truthful?"

[34:31] Those who disbelieve have said, "We will not believe in this Quran, nor in the previous scriptures." If you could only envision these transgressors when they stand before their Lord! They will argue with one another back and forth. The followers will tell their leaders, "If it were not for you, we would have been believers."