Kabbalah on Genesis 22:21: Zohar & Mystical Interpretation

אֶת־ע֥וּץ בְּכֹר֖וֹ וְאֶת־בּ֣וּז אָחִ֑יו וְאֶת־קְמוּאֵ֖ל אֲבִ֥י אֲרָֽם׃

Uz his first-born, and Buz his brother, and Kemuel the father of Aram;