Voyage to Tomorrow

al-Hakim, Tawfiq. Voyage to Tomorrow. In Plays, Prefaces & Postscripts of Tawfiq al-Hakim. 2 vol. 1957 (Arabic). William M, Hutchins, trans. Washington, DC: Three Continents P, 1984.

Unproduced play. A rocket ship becomes a prison for two men who think they've gotten out of prison. Cited in Appendix to R. Willingham's Science Fiction and the Theatre, our source here.