3 occurrences across the corpus

Sefer haYashar (Book of Jasher)

The Book of Jasher 7:16

And the sons of Ashar were Mirus and Mokil, and the sons of Arpachshad were Shelach, Anar and Ashcol.

The Book of Jasher 16:16

And now therefore behold, here is all belonging to you, take it and go; as the Lord liveth I will not take from you from a living soul down to a shoetie or thread, excepting the expense of the food of those who went out with me to battle, as also the portions of the men who went with me, Anar, Ashcol, and Mamre, they and their men, as well as those also who had remained to watch the baggage, they shall take their portion of the spoil.

The Book of Jasher 24:14

And at her bier was Shem, his sons Eber and Abimelech, together with Anar, Ashcol and Mamre, and all the grandees of the land followed her bier.