תנ״ך אויף שמות 9:5

Moshe said to Pharaoh, “Glorify yourself at my expense. [Exactly for] when shall I pray for you, and for your servants and for your people, that the frogs be destroyed from you and from your houses, remaining only in the river.”

[Pharaoh] said, “By tomorrow.” [Moshe] said, “As you say. You will then know that there is none like Adonoy, our God.