Does the fact that recompense, reckoning, and retribution for the oppressed from the oppressor occur only in the Hereafter justify the statement: "Absolute justice will be established in the Hereafter, not in this world"?

Injustice is a reality in this world, and this does not contradict the denial of injustice to God. Injustice occurs at the hands of people, as the Almighty said: "Indeed, Allah does not wrong the people at all, but it is the people who wrong themselves." The recompense for injustice and the accountability of the oppressor will be fully realized in the Hereafter. God will judge among His servants on the Day of Resurrection, and it is there that true justice will be established, not in this world. The Day of Resurrection was named so because people will rise from their graves, witnesses will stand, and justice will be established on it. Denying injustice to God while it exists in this world at the hands of creation is clearer than denying evil from God's actions while it exists in His creations.