Genesis 37:21-23

21But Reuben heard and rescued him out of their hands, saying, “We must not beat him to death.”

22In order to rescue him from their hand and to return him to his father, Reuben said to them, “Don’t shed blood! Throw him into this pit here in the wilderness, but don’t lay a hand on him!”

23So as soon as Joseph came up to his brothers they stripped Joseph of his tunic (the long sleeved tunic that he had on).