Genesis 8:5-7

American Standard Version

⁵ And the waters decreased continually until the tenth month: in the tenth month, on the first day of the month, were the tops of the mountains seen.

⁶ And it came to pass at the end of forty days, that Noah opened the window of the ark which he had made: ⁷ and he sent forth a raven, and it went forth to and fro, until the waters were dried up from off the earth.