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.
Jewish Publication Society of America Version (JPS1917) - Leviticus 18:17 >Thou shalt not uncover the nakedness of a woman and her daughter; thou shalt not take her son's daughter, or her daughter's daughter, to uncover her nakedness: they are near kinswomen; it is lewdness.