Numbers 13:4 Halakhah

וְאֵ֖לֶּה שְׁמוֹתָ֑ם לְמַטֵּ֣ה רְאוּבֵ֔ן שַׁמּ֖וּעַ בֶּן־זַכּֽוּר׃

And these were their names: of the tribe of Reuben, Shammua the son of Zaccur.

Read halakhic rulings (Jewish law) on Numbers 13:4: and classical halakhic sources.