Exodus 8:8-11
8:8 Then Pharaoh summoned Moses and Aaron and said, “Pray to the Lord that he may take the frogs away from me and my people, and I will release the people that they may sacrifice to the Lord.”
8:9 Moses said to Pharaoh, “You may have the honor over me – when shall I pray for you, your servants, and your people, for the frogs to be removed from you and your houses, so that they will be left only in the Nile?”
8:10 He said, “Tomorrow.” And Moses said, “It will be as you say, so that you may know that there is no one like the Lord our God.
8:11 The frogs will depart from you, your houses, your servants, and your people; they will be left only in the Nile.”