Genesis 41:25

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

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

The 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.”

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

The seven thin and ugly cattle that came up after them are seven years, and also the seven empty heads of grain blasted with the east wind; they will be seven years of famine.

That is the thing which I have spoken to Pharaoh. God has shown Pharaoh what he is about to do.