Genesis 37:29-33

Now Reuben returned to the pit, and behold, Joseph was not in the pit; so he tore his garments.

He returned to his brothers and said, “The boy is not there; as for me, where am I to go?”

So they took Joseph’s tunic, and slaughtered a male goat, and dipped the tunic in the blood;

and they sent the multicolored tunic and brought it to their father and said, “We found this; please examine it to see whether it is your son’s tunic or not.”

Then he examined it and said, “It is my son’s tunic. A vicious animal has devoured him; Joseph has surely been torn to pieces!”