Genesis 37:34-36

Then Jacob tore his clothes, put a simple mourning cloth around his waist, and mourned for his son for many days. All of his sons and daughters got up to comfort him, but he refused to be comforted, telling them, “I’ll go to my grave mourning for my son.” And Joseph’s father wept for him. Meanwhile the Midianites had sold Joseph to the Egyptians, to Potiphar, Pharaoh’s chief officer, commander of the royal guard.