IT came to pass in the countries of Africa, in a particular month, during which it is the usage and the custom of the Jews to rise in the night to say their prayers, that a servant, whose business it was to knock at the doors, and to call up the people, found one night an ass (jumento) in the street; and he mounted upon him, and went riding along and calling up the people. And, as he rode, lo! the ass began to swell and to increase in size, until he became three hundred yards in height, and reached up even unto the top of the loftiest tower of the church, upon which he set the man, and then went away; and on the morrow the man was found sitting upon the tower. Now, thou must know that this ass was one of the Mazikeen.
Source
THE FAIRY MYTHOLOGY BY THOMAS KEIGHTLEY (1850)