Reference for Genesis 36:12

וְתִמְנַ֣ע ׀ הָיְתָ֣ה פִילֶ֗גֶשׁ לֶֽאֱלִיפַז֙ בֶּן־עֵשָׂ֔ו וַתֵּ֥לֶד לֶאֱלִיפַ֖ז אֶת־עֲמָלֵ֑ק אֵ֕לֶּה בְּנֵ֥י עָדָ֖ה אֵ֥שֶׁת עֵשָֽׂו׃

And Timna was concubine to Eliphaz Esau’s son; and she bore to Eliphaz Amalek. These are the sons of Adah Esau’s wife.