ANSWER:

The fast is valid if this is for voluntary fasts and you didn’t eat or drink after athan if Fajr.

This doesn’t apply to  mandatory fasting as The intention for making up a missed mandatory fast must be made the night before.

I intend to wake up and take suhur and then fast, but I fail sometimes, and after waking in the morning , I intend to fast for that day. Is my fast valid if I intend after waking from sleep in the morning ?

Fasting | December 4, 2018 6:10 am
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If a person cannot fast due to a long term illness when should they pay for their missed fasts. If they don’t pay in Ramadan then can they pay at another time throughout the year or is there a deadline for which payment must be made ?
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My mother never fasted her missed days of RAMADAN. And now obviously she has so so many fasts left. What should she do?