The answer is: They must marry within their tribe

Num 36:10-12

The story of the daughters of Zelophehad provides a fascinating look at the intersection of gender, property rights, and tribal identity in ancient Israel. These five sisters—Mahlah, Noah, Hoglah, Milcah, and Tirzah—challenged conventional norms by boldly requesting their father's inheritance rights when he died without a male heir. What creativity and courage they displayed!

However, to preserve the tribal allocation of land, the later laws dictated that they could only marry within their tribe. This meant that any suitor would have to be a fellow Manassite, avoiding the risk of property shifting to another tribe through marriage. This stipulation underscores the emphasis on preserving tribal identity and land tenure in ancient society, further seen when Joshua divides the land among the tribes in the Book of Joshua.

It's intriguing to note that the daughters were firm in their convictions and tunneled a path not just for themselves but for women, challenging existing norms. In relation to other women of the Bible, such as Ruth, we can appreciate how women's agency intertwined with lineage and property, stirring cultural shifts that echo through generations.

This incident of legal and social innovation reflects broader themes in the biblical narrative, where unexpected voices contribute to God's plan. It's a poignant reminder that enduring principles, such as justice and right treatment, reflect through these stories, providing relevance and lessons that still resonate today. Whenever you think of Paz's legal issue, remember the Zelophehad daughters advocating for their rights!