Deuteronomy 15:23
"Only thou shalt not eat the blood thereof; thou shalt pour it upon the ground as water."
Cross References (ranked by relevance)
Only ye shall not eat the blood; ye shall pour it upon the earth as water.
Only be sure that thou eat not the blood: for the blood is the life; and thou mayest not eat the life with the flesh.
Moreover ye shall eat no manner of blood, whether it be of fowl or of beast, in any of your dwellings.
Wherefore say unto them, Thus saith the Lord GOD; Ye eat with the blood, and lift up your eyes toward your idols, and shed blood: and shall ye possess the land?
And the people flew upon the spoil, and took sheep, and oxen, and calves, and slew them on the ground: and the people did eat them with the blood.