Genesis 28:9 Then went Esau to Ishmael, and took to the wives which he had Mahalath the daughter of Ishmael Abraham's son, the sister of Nebajoth, to be his wife. Nave's Topical Index
Genesis 36:2,3 Esau took his wives of the daughters of Canaan; Adah the daughter of Elon the Hittite, and Aholibamah the daughter of Anah the daughter of Zibeon the Hivite; Nave's Topical Index
Library
The Book of Jubilees ... Keturah; before his death Abraham summoned Ishmael and his ... was a king in Edom, Balak son of Beor ... adultery which had been delivered to Abraham and transmitted by ... //christianbookshelf.org/deane/pseudepigrapha/the book of jubilees.htm
Scriptural Poems; Being Several Portions of Scripture Digested ... ... And now these merchants, sons of Ishmael, Again did poor ... I am The God of thy forefathers, Abraham And Isaac ... and will bring thee back; And thy son Joseph there ... /.../scriptural poems being several portions.htm