ANSWER:

If a random thought of breaking it crossed your mind but you didn’t break it, the fast is valid

It is broken only when you had firmly intended to break it and considered yourself not fasting anymore. 

QUESTION: Can a fast be broken if I have the intention of breaking it in my mind but I actually don’t break it?

Fasting, Fasting and Ramadan | February 18, 2024 11:01 am
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QUESTION: During Rajab 27 I know its a bidah my parents observe this , so they will not make any food during the day , i always thinks to take fast in other days like normal sunnah , Bcz of lazy i couldn’t but there will be no food on rajab 27 so I observe the fast with the intention of normal sunnah is this permissible
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QUESTION: If someone was severely sick last ramadhan and was unable to fast so they paid fidya Now that they are healthy are they obligated to pay back the ramadhan from last year.