In retirement Zubayr wrote his memoirs, which were translated into English as Black Ivory: Or, the Story of El Zubeir Pasha, Slaver and Sultan, as Told By Himself.
Han skrev sina memoarer, som skulle komma att översättas till engelska som Black Ivory: Or, the Story of El Zubeir Pasha, Slaver and Sultan, as Told By Himself.