Genesis 7:10-12

Young's Literal Translation

¹⁰ And it cometh to pass, after the seventh of the days, that waters of the deluge have been on the earth.

¹¹ In the six hundredth year of the life of Noah, in the second month, in the seventeenth day of the month, in this day have been broken up all fountains of the great deep, and the net-work of the heavens hath been opened,

¹² and the shower is on the earth forty days and forty nights.