In the top margin of fol. 1r, Árni Magnússon added: Ex Codice Flateyensi, this is, however, only concerning fols 1-21 which were copied from AM 326 a 4to; after that the rest of the tale follows the version in AM 544 4to. (Háuksbók).
Grönlands historiske Mindesmærker II 654-655
Fellows-Jensen: Hemings þáttr Áslákssonars. 37-42Var.app. 326b.
Written by Ásgeir Jónsson.
Two additions on fol. 19v are, however, written by Árni Magnússon.