If I break the fast deliberately without a valid sharia excuse is this sinful and what is the penalty?

Answer:

All praise is due to Allah, exalted is He, and peace and blessing be upon His Messenger.

Breaking the fast deliberately without a valid excuse is a major sin. Also the person will have to expiate for that sin. The expiation is to fast continuously for 2 (lunar) months or sixty days if he has started fasting from the middle of a month; if that is not possible because of genuine health problems or incapacity, then sixty people should be fed 2 meals or what is given in sadaqatul fitr should be given to each person.

And Allah knows best.

Answered by: Maulana Ashraf Zaman