Genesis 41:1-4

Now it happened at the end of two full years that Pharaoh had a dream, and behold, he was standing by the Nile.

And behold, from the Nile seven cows came up, fine-looking and fat; and they grazed in the marsh grass.

Then behold, seven other cows came up after them from the Nile, ugly and thin, and they stood by the other cows on the bank of the Nile.

Then the ugly and thin cows ate the seven fine-looking and fat cows. Then Pharaoh awoke.