Leviticus 18:10-12

Young's Literal Translation

¹⁰ `The nakedness of thy son's daughter, or of thy daughter's daughter: thou dost not uncover their nakedness; for theirs [is] thy nakedness.

¹¹ `The nakedness of a daughter of thy father's wife, begotten of thy father, she [is] thy sister; thou dost not uncover her nakedness.

¹² `The nakedness of a sister of thy father thou dost not uncover; she [is] a relation of thy father.