Deuteronomy 2:28

Again, the sons of Israel said to him, “We will go up by the highway, and if I and my livestock do drink any of your water, then I will pay its price. Let me only pass through on my feet, nothing else.”

Then Israel sent messengers to Sihon, king of the Amorites, saying,

after he had struck down Sihon the king of the Amorites, who lived in Heshbon, and Og the king of Bashan, who lived in Ashtaroth and Edrei.

“Then you came to this place, and Sihon the king of Heshbon and Og the king of Bashan came out to meet us for battle, but we struck them down;

‘And Israel sent messengers to Sihon king of the Amorites, the king of Heshbon, and Israel said to him, “Please let us pass through your land to our place.”