2 Kings 6:24-25

Now it came about after this, that Ben-hadad king of Aram gathered all his army and went up and besieged Samaria. There was a great famine in Samaria; and behold, they besieged it, until a donkey’s head was sold for eighty shekels of silver, and a fourth of a kab of dove’s dung for five shekels of silver.