Genesis 37:36

And the Midianites sold him into Egypt to Potiphar, a eunuch of Pharaoh, the chief of the executioners.

Genesis 37:28

And men, Midianites traders, came by. And they drew up Joseph and took him out of the pit, and sold Joseph to the Ishmaelites for twenty pieces of silver. And they brought Joseph into Egypt.

Genesis 40:4

And the chief of the executioners charged Joseph with them, and he served them. And they continued for a time under guard.

Genesis 25:1-2

Then again Abraham took a wife, and her name was Keturah.

Genesis 39:1-23

And Joseph was brought down to Egypt. And Potiphar, a eunuch of Pharaoh, the chief of the executioners, an Egyptian man, bought him from the Ishmaelites who had brought him down there.

2 Kings 25:8

And in the fifth month, on the seventh of the month; it was the nineteenth year of King Nebuchadnezzar king of Babylon; Nebuzaradan the chief of the executioners, a servant of the king of Babylon, came to Jerusalem.

Esther 1:10

On the seventh day, when the heart of the king was merry with wine, he commanded Mehuman, Biztha, Harbona, Bigtha, and Abagtha, Zethar, and Carcas, the seven eunuchs who served in the presence of Ahasuerus the king,

Isaiah 56:3

And do not let the son of the stranger, who has joined himself to Jehovah, speak, saying, Jehovah has utterly separated me from His people. And do not let the eunuch say, Behold, I am a dry tree.

Treasury of Scripture Knowledge

Summary

And the Midianites sold him into Egypt unto Potiphar, an officer of Pharaoh's, and captain of the guard.

Bible References

The midianites

Genesis 37:28
And men, Midianites traders, came by. And they drew up Joseph and took him out of the pit, and sold Joseph to the Ishmaelites for twenty pieces of silver. And they brought Joseph into Egypt.
Genesis 25:1
Then again Abraham took a wife, and her name was Keturah.
Genesis 39:1
And Joseph was brought down to Egypt. And Potiphar, a eunuch of Pharaoh, the chief of the executioners, an Egyptian man, bought him from the Ishmaelites who had brought him down there.