Ezra 2:51 Kabbalah

בְּנֵי־בַקְבּ֥וּק בְּנֵי־חֲקוּפָ֖א בְּנֵ֥י חַרְחֽוּר׃

the children of Bakbuk, the children of Hakupha, the children of Harhur;