You shall not uncover the nakedness of your mother’s sister, because she is the flesh of your mother
Other versions
King James Version
Thou shalt not uncover the nakedness of thy mother's sister: for she is thy mother's near kinswoman.English Standard Version
You shall not uncover the nakedness of your mother's sister, for she is your mother's relative.New International Version
"'Do not have sexual relations with your mother's sister, because she is your mother's close relative.