Genesis 24:5
And the servant said unto him, Peradventure the woman will not be willing to follow me unto this land: must I needs bring thy son again unto the land from whence thou camest?
Cross-reference
Genesis 24:8
Parallel
Abraham directly answers this question in 24:8, releasing the servant from the oath if the woman won't come.
Genesis 24:39
Parallel
In 24:39, the servant retells this same question to Rebekah's family, recounting his exchange with Abraham.