Genesis 37:23-28

Now when Joseph reached his brothers, they stripped him of his tunic, the [distinctive] multicolored tunic which he was wearing; then they took him and threw him into the pit. Now the pit was empty; there was no water in it. Then they sat down to eat their meal. When they looked up, they saw a caravan of Ishmaelites coming from Gilead [east of the Jordan], with their camels bearing ladanum resin [for perfume] and balm and myrrh, going on their way to carry the cargo down to Egypt. Judah said to his brothers, “What do we gain if we kill our brother and cover up his blood (murder)? Come, let us [instead] sell him to these Ishmaelites [and Midianites] and not lay our hands on him, because he is our brother and our flesh.” So his brothers listened to him and agreed. [Gen 22:24; 25:2] Then as the Midianite [and Ishmaelite] traders were passing by, the brothers pulled Joseph up and lifted him out of the pit, and they sold him to the Ishmaelites for twenty shekels of silver. And so they took Joseph [as a captive] into Egypt.