Immram Curaig (Maíl(e )Duin)/Maíldúin, or Immram(m) Curaig Mælduin Inso, or Immram Mæle Dúin (The Voyage of Mæl Duin’s Boat), or (Voyage of Máel Dúin), mainly from Lebor na hUidre and Yellow Book of Lecan. Eleventh Century AD (as early as Eighth Century AD):

van Hamel, Anton Gerard. ‘The Text of Immram Curaig Maíldúin’ in Etudes Celtiques, Volume 3, Issue 5 (1938), pp1-20.

Whitley Stokes, tr. ‘The Voyage of Mael Duin’s Boat (Immram curaig Maíle Duin LU, YBL, Harl. 5280, Eg. 1782)’ at Editions de l’Avenance.