Genesis 37:29-32

Then Reuben returned to the pit, and indeed Joseph was not in the pit; and he tore his clothes. And he returned to his brothers and said, “The lad is no more; and I, where shall I go?” So they took Joseph’s tunic, killed a kid of the goats, and dipped the tunic in the blood. Then they sent the tunic of many colors, and they brought it to their father and said, “We have found this. Do you know whether it is your son’s tunic or not?”