Mere uncertainty as dawn approaches is distinct from a case where it is later established that eating occurred after dawn.
This is not advice to keep eating recklessly until the last moment. Rely on sound local timing information and distinguish an unproven worry from a confirmed invalidating event.
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Kitab al-Sawm: Mistaken Dawn or Sunset, Qada and Kaffarah
Mere uncertainty as dawn approaches is distinct from a case where it is later established that eating occurred after dawn.
This is not advice to keep eating recklessly until the last moment. Rely on sound local timing information and distinguish an unproven worry from a confirmed invalidating event.