Caps for Sale from Ben Ish Hai's Haggada?

Is the book Caps For Sale, published in 1938, taken from the Haggada of the Ben Ish Hai?

Or did they both get the story from an earlier source (as Wikipedia says - "Based on a folktale")?

Links to honor Gog's Upcoming Visit

Some of these links are new, some are old. All are interesting.

Dreaming of Moshiach - 9 Months

Mystical Paths - Rome, Persia, and Jerusalem

Keitz Meguleh - The Sprouting of Moshiach and On The End of Galus

Hamikdash - End of Days - Now with Links

Thirtysix.org - Here Come The Americans, or, We Must Have ADD