Directives From the Guardian
Page 27
 

70: FAST (Necessary Permission For)
 
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"With reference to your son's request for advice regarding the observance of the Bahá'í Fast; much as the Guardian realizes the difficulty which a believer of his position, attending a military school, will have to encounter if he wishes to strictly conform to the regulations of the Fast, he nevertheless would advise him to make every effort to obtain from the school authorities the necessary permission. In case his request is refused the only alternative for him would be to obey his superior."