Hadith 4:912
Abdah narrated to us, from Sa’id ibn Ya’la ibn Hakim, from Sa’id ibn Jubayr, regarding a man who broke his fast on a day of Ramadan intentionally. He said: He should seek forgiveness from Allah for that and repent to Him, and he should make up a day in its place.
حدثنا عبدة عن سعيد بن يعلى بن حكيم عن سعيد بن جبير في رجل أفطر يوما من رمضان متعمدا قال يستغفر الله من ذلك ويتوب إليه ويقضي يوما مكانه