What is meant by His — the Most High’s — saying in Surat Yunus: "And the dominion in the land will be yours both"?

The meaning of "al-kibriya'" (greatness/pride) in the verse refers to kingship and authority, as Imam al-Baghawi explained that Pharaoh and his people said to Moses: "Have you come to us to turn us away from that upon which we found our fathers, and that there may be for you two the greatness [al-kibriya']?" meaning kingship and authority in the land of Egypt. Al-Baydawi clarified that al-kibriya' means kingship, and it was named thus because kings are characterized by pride or arrogance.