“Ibn-Hakam al-Bokhari, Murdered in His Labyrinth” (1952)
Jorge Luis Borges (writer).
Read in Sun Axelson’s Swedish translation.
Possibly earlier; published in the 1952 edition of The Aleph.
References here: “Labyrinth Objects: File 538” (1987).
Viewed 2018-11-20. Ugly in unsafe old browsers.