Genesis 34:13-15

Young's Literal Translation

¹³ And the sons of Jacob answer Shechem and Hamor his father deceitfully, and they speak (because he defiled Dinah their sister),

¹⁴ and say unto them, `We are not able to do this thing, to give our sister to one who hath a foreskin: for it [is] a reproach to us.

¹⁵ `Only for this we consent to you; if ye be as we, to have every male of you circumcised,