Genesis 41:28-32

It is as I have spoken to Pharaoh: God has shown Pharaoh what He is about to do.

Behold, seven years of great abundance are coming in all the land of Egypt;

and after them seven years of famine will come, and all the abundance will be forgotten in the land of Egypt, and the famine will ravage the land.

So the abundance will be unknown in the land because of that subsequent famine; for it will be very severe.

Now as for the repeating of the dream to Pharaoh twice, it means that the matter is confirmed by God, and God will quickly bring it about.