The word ʿillah does not mean a person’s illness here. It means an impediment in the sky, such as dense cloud or heavy haze, that affects visibility.
The expression bi-l-samāʾ identifies where that impediment exists. It is relevant to the conditions under which crescent testimony is evaluated.
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Kitab al-Sawm: Eid Crescent Sighting and Testimony
The word ʿillah does not mean a person’s illness here. It means an impediment in the sky, such as dense cloud or heavy haze, that affects visibility.
The expression bi-l-samāʾ identifies where that impediment exists. It is relevant to the conditions under which crescent testimony is evaluated.