For Whom is Fasting Mandatory?
The obligation of fasting is mandatory on a person who has ful-
filled these requirements: He or she must be a Muslim, sane,
must have reached puberty, must be healthy, and not in a state
of travel; and for women, they must be in a state of purity
(clean from menstruation and post childbirth bleeding). If a
person fulfills the above prerequisites, fasting becomes valid
and mandatory. Inferring from this definition, if one of these
conditions is missing, the fast will be invalid. Indeed, it may be
better to analyze each category of the definition.