Ezra 2:46 Kabbalah

בְּנֵי־חָגָ֥ב בְּנֵי־שמלי [שַׁלְמַ֖י] בְּנֵ֥י חָנָֽן׃

the children of Hagab, the children of Salmai, the children of Hanan;

Read kabbalistic (mystical) interpretation of Ezra 2:46: and classical mystical sources.