E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
The charm by which the door of the robbers dungeon flew open. The reference is to the tale of The Forty Thieves, in the Arabian Nights.
These words were the only open sesame to their feelings and sympathies.E. Shelton
The spell loses its power, and he who should hope to conjure with it would find himself as much mistaken as Cassim when he stood crying Open, Wheat, Open, Barley, to the door which obeyed no sound but Open, Sesame.