The family heads of the clan of Gilead son of Makir, the son of Manasseh, who were from the clans of the descendants of Joseph, came and spoke before Moses and the leaders, the heads of the Israelite families.
References for Numbers 36:1
They said, “When the LORD commanded my lord to give the land as an inheritance to the Israelites by lot, he ordered you to give the inheritance of our brother Zelophehad to his daughters.
References for Numbers 36:2
Now suppose they marry men from other Israelite tribes; then their inheritance will be taken from our ancestral inheritance and added to that of the tribe they marry into. And so part of the inheritance allotted to us will be taken away.
When the Year of Jubilee for the Israelites comes, their inheritance will be added to that of the tribe into which they marry, and their property will be taken from the tribal inheritance of our ancestors.”
References for Numbers 36:4