A DAY FOR HIM IS A THOUSAND YEARS
the Holy Qur'an

Yet they ask thee to hasten on the Punishment! But God will not fail in His Promise. Verily a Day in the sight of thy Lord is like a thousand years of your reckoning. (22:47)

He rules (all) affairs from the heavens to the earth: in the end will (all affairs) go up to Him, on a Day, the space whereof will be (as) a thousand years of your reckoning. (32:5)

End of Quotes