Genesis 37:34-36 New American Standard Bible (NASB)

34. So Jacob tore his clothes, and put sackcloth on his loins and mourned for his son many days.

35. Then all his sons and all his daughters arose to comfort him, but he refused to be comforted. And he said, "Surely I will go down to Sheol in mourning for my son." So his father wept for him.

36. Meanwhile, the Midianites sold him in Egypt to Potiphar, Pharaoh's officer, the captain of the bodyguard.

Genesis 37