The ruling on someone who did not fast a Day of Ramadhan and then he repented
Question :
What is the ruling on someone who ate during a day in Ramadhan intentionally, then he repented to Allah? Is this person's repentance accepted?
Answer:
Yes, his repentance is accepted due to Allâh's Statement:
"And verily I am Oft-Forgiving for whoever repents, believes, works righteous deeds and then is guided."
And there are evidences other than this from what has come in the Book and the Sunnah.
Source:
The Permanent Committee
Fatawa Islamiyah, Vol. 3 Page 324