Leviticus 18:17

''Do not have sexual relations with both a woman and her daughter. Do not have sexual relations with either her son's daughter or her daughter's daughter; they are her close relatives. That is wickedness.

(New International Version)

'You shall not uncover the nakedness of a woman and of her daughter, nor shall you take her son's daughter or her daughter's daughter, to uncover her nakedness; they are blood relatives. It is lewdness.

(New American Standard Bible)

Thou shalt not uncover the nakedness of a woman and her daughter, neither shalt thou take her son's daughter, or her daughter's daughter, to uncover her nakedness; for they are her near kinswomen: it is wickedness.

(King James Version)