Genesis 37:25

37:25 When they sat down to eat their food, they looked up and saw a caravan of Ishmaelites coming from Gilead. Their camels were carrying spices, balm, and myrrh down to Egypt.

Genesis 37:28

37:28 So when the Midianite merchants passed by, Joseph’s brothers pulled him out of the cistern and sold him to the Ishmaelites for twenty pieces of silver. The Ishmaelites then took Joseph to Egypt.