Four elements work together: abstention, the defined prohibited acts, the relevant daylight period, and intention. None is a substitute for another.
For example, someone may refrain from all meals but deliberately drink water during the fasting period. Avoiding food alone does not preserve a fast after a deliberate daytime drink; the individual conditions matter.
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Kitab al-Sawm: Fasting Hours, Invalidators, Qada and Kaffarah
Four elements work together: abstention, the defined prohibited acts, the relevant daylight period, and intention. None is a substitute for another.
For example, someone may refrain from all meals but deliberately drink water during the fasting period. Avoiding food alone does not preserve a fast after a deliberate daytime drink; the individual conditions matter.