Genesis 41:27
And the seven thin and ill favoured kine that came up after them are seven years; and the seven empty ears blasted with the east wind shall be seven years of famine.
Cross-reference
Genesis 41:30
Parallel
Genesis 41:30 elaborates on the same famine: the seven thin cows represent seven years of scarcity that will consume the plenty.
Genesis 41:54
Prophetic fulfillment
Genesis 41:54 describes the fulfillment of this prophecy — the seven years of famine begin just as the thin cows foretold.