Book of Jasher 84:15
And Sihon sent messengers to Beor the son of Janeas, the son of Balaam, counsellor to the king of Egypt, and to Balaam his son, to curse Moab, in order that it might be delivered into the hand of Sihon.
And Sihon sent messengers to Beor the son of Janeas, the son of Balaam, counsellor to the king of Egypt, and to Balaam his son, to curse Moab, in order that it might be delivered into the hand of Sihon.