John Gill Commentary Genesis 41:28

"That is the thing which I spake unto Pharaoh: what God is about to do he hath showed unto Pharaoh." — Genesis 41:28 (ASV)

This [is] the thing which I have spoken to Pharaoh
As an interpretation of his dreams: what God [is] about to do, he shows to Pharaoh :
the events of fourteen years with respect to plenty and sterility.