Jubilees 8:1

In the twenty-ninth jubilee, in the first week, [1373 A.M.] in the beginning thereof Arpachshad took to himself a wife and her name was Rasu'eja, the daughter of Susan, the daughter of Elam, and she bare him a son in the third year in this week, [1375 A.M.] and he called his name Kainam.