ANSWER:

You will be rewarded for voluntary fasts but the reward is reduced depending on the time you intended it.

 

Shiekh we know we must make intention to fast before Fajr. Does that include non-obligatory fasting like Monday and Thursday, fasting of three white days, etc? Will I get reward if I realize that today is Thursday and I didn’t make intention to fast it but I just fast anyway?

Fasting | October 18, 2018 10:10 pm
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If I am fasting kaffara do I have to make the intention before Fajr or if I don’t eat anything can I make after?
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My question to you is that can one keep nafil fast (voluntary) and kadha fast (compulsory) together? If yes, then is it acceptable if one keeps it(both nafil and kadha fast together) without doing suhur?