Columbia subject headings:
Fasting--Religious aspects--Islam--Early works to 1800.
Pillars of Islam--Early works to 1800.
Harvard subject headings:
Fasting--Religious aspects--Islam--Early works to 1800.
Pillars of Islam--Early works to 1800.
Princeton subject headings:
Fasting--Religious aspects--Islam--Early works to 1800.
Pillars of Islam--Early works to 1800.