Numbers 26:23
Of the sons of Issachar after their families: of Tola, the family of the Tolaites: of Pua, the family of the Punites:
Cross-references
Genesis 46:13
Parallel
Genesis 46:13 lists Issachar's sons (Tola, Phuvah, Job, Shimron) — the same family heads that form the clans here.
1 Chronicles 7:1
Parallel
1 Chronicles 7:1 lists the same sons of Issachar—Tola, Puah, Jashub, and Shimron—confirming the genealogical record.
Genesis 30:18
Historical context
Genesis 30:18 gives the naming of Issachar ('reward') — the tribal ancestor whose descendants are enumerated here.