Reference for Numbers 36:9

וְלֹֽא־תִסֹּ֧ב נַחֲלָ֛ה מִמַּטֶּ֖ה לְמַטֶּ֣ה אַחֵ֑ר כִּי־אִישׁ֙ בְּנַ֣חֲלָת֔וֹ יִדְבְּק֕וּ מַטּ֖וֹת בְּנֵ֥י יִשְׂרָאֵֽל׃

So shall no inheritance remove from one tribe to another tribe; for the tribes of the children of Israel shall cleave each one to its own inheritance.’

BDB

BDB