Genesis 37:31-36 NLT

31 Then Joseph's brothers killed a goat and dipped the robe in its blood.
32 They took the beautiful robe to their father and asked him to identify it. "We found this in the field," they told him. "It's Joseph's robe, isn't it?"
33 Their father recognized it at once. "Yes," he said, "it is my son's robe. A wild animal has attacked and eaten him. Surely Joseph has been torn in pieces!"
34 Then Jacob tore his clothes and put on sackcloth. He mourned deeply for his son for many days.
35 His family all tried to comfort him, but it was no use. "I will die in mourning for my son," he would say, and then begin to weep.
36 Meanwhile, in Egypt, the traders sold Joseph to Potiphar, an officer of Pharaoh, the king of Egypt. Potiphar was captain of the palace guard.