Genesis 41:1-3

Then it came to pass, at the end of two full years, that Pharaoh had a dream; and behold, he stood by the river. Suddenly there came up out of the river seven cows, fine looking and fat; and they fed in the meadow. Then behold, seven other cows came up after them out of the river, ugly and gaunt, and stood by the other cows on the bank of the river.