Genesis 37:18-21

They saw him from afar, and before he came near to them they conspired against him to kill him. They said to one another, “Here comes this dreamer. Come now, let us kill him and throw him into one of the pits. Then we will say that a fierce animal has devoured him, and we will see what will become of his dreams.” But when Reuben heard it, he rescued him out of their hands, saying, “Let us not take his life.”