Where is "And they say, `As a harlot doth he make our sister?'" found in the Bible?

This verse is found in Genesis, chapter 34, verse 31 of the Young's Literal Translation (YLT) Bible translation.

Genesis 34:31 (YLT) - Bible Verse

And they say, `As a harlot doth he make our sister?'

And Moses said, I will turn aside now, and see this great sight, why the bush is not burnt.