I Chronicles 11:35 Midrash

אֲחִיאָ֧ם בֶּן־שָׂכָ֛ר הַהֲרָרִ֖י אֱלִיפַ֥ל בֶּן־אֽוּר׃ (ס)

Ahiam the son of Sacar the Hararite, Eliphal the son of Ur;

Read midrashic interpretation of I Chronicles 11:35: and classical rabbinic exegesis.