Bamidbar 36:7-9

Orthodox Jewish Bible

⁷ So shall not the nachalah of the Bnei Yisroel remove from matteh to matteh; for every ish of the Bnei Yisroel shall keep himself to the nachalat matteh of his Avot.

⁸ And every bat, that possesseth a nachalah in mattot Bnei Yisroel, shall be isha unto one of the mishpakhat matteh of her av, that the Bnei Yisroel may possess every ish the nachalat of his avot.

⁹ Neither shall the nachalah remove from one matteh (tribe) to another matteh (tribe); for the mattot (tribes) of the Bnei Yisroel shall make deveykus every ish to his own nachalah.