Numbers 36:5-6

Young's Literal Translation

⁵ And Moses commandeth the sons of Israel, by the command of Jehovah, saying, `Rightly are the tribe of the sons of Joseph speaking;

⁶ this [is] the thing which Jehovah hath commanded concerning the daughters of Zelophehad, saying, To those good in their eyes let them be for wives; only, to a family of the tribe of their fathers let them be for wives;