22 YHWH said to Moses, “Stretch out your hand toward the sky, that there may be hail in all the land of Egypt, on man, and on animal, and on every herb of the field, throughout the land of Egypt.” Exodus 9:22WEB
This passage contains a positive command, with immediate application directed toward Moses, "Stretch out your hand toward the sky, that there may be hail in the land of Egypt".
This command is part of the Principles and Definitions. It is relevant to an understanding of the distinctive role of Prophecy as Moses is relaying a message from God, and of Stewardship as God is commanding Pharaoh to relinquish God's possession Israel.
This command was fulfilled when Moses performed the act in accordance with God's commands.