Numbers 36:6-8 NIV

6 This is what the LORD commands for Zelophehad’s daughters: They may marry anyone they please as long as they marry within their father’s tribal clan.
7 No inheritance in Israel is to pass from one tribe to another, for every Israelite shall keep the tribal inheritance of their ancestors.

References for Numbers 36:7

8 Every daughter who inherits land in any Israelite tribe must marry someone in her father’s tribal clan, so that every Israelite will possess the inheritance of their ancestors.

References for Numbers 36:8