Genesis 41:22

18and behold, seven fat and sleek cattle came up out of the river. They fed in the marsh grass;

19and behold, seven other cattle came up after them, poor and very ugly and thin, such as I never saw in all the land of Egypt for ugliness.

20The thin and ugly cattle ate up the first seven fat cattle;

21and when they had eaten them up, it couldn’t be known that they had eaten them, but they were still ugly, as at the beginning. So I awoke.

22I saw in my dream, and behold, seven heads of grain came up on one stalk, full and good;

23and behold, seven heads of grain, withered, thin, and blasted with the east wind, sprung up after them.

24The thin heads of grain swallowed up the seven good heads of grain. I told it to the magicians, but there was no one who could explain it to me.”

25Joseph said to Pharaoh, “The dream of Pharaoh is one. What God is about to do he has declared to Pharaoh.

26The seven good cattle are seven years; and the seven good heads of grain are seven years. The dream is one.