1 Chronicles 2:4-8

His daughter-in-law Tamar bore him Perez and Zerah. Judah had five sons in all.

The sons of Perez were Hezron and Hamul.

The sons of Zerah were Zimri, Ethan, Heman, Calcol, and Dara; five of them in all.

The son of Carmi was Achar, the one who brought disaster on Israel by violating the ban.

The son of Ethan was Azariah. Genealogy of David