It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that a man broke his fast in Ramadan (by having intercourse), so the Messenger of Allah (peace and blessings be upon him) ordered him as expiation to free a slave, or to fast for two consecutive months, or to feed sixty needy people. The man said, "I do not have the ability to do that." Then a basket of dates was brought to the Messenger of Allah (peace and blessings be upon him), so he said, "Take this and give it as charity." The man said, "There is no one more needy than me." So the Messenger of Allah (peace and blessings be upon him) laughed until his blessed molar teeth became visible, then he said, "Then you eat it."
Hadith Referenceالسنن المأثورة / باب ما جاء في الأذان / 287
Hadith Takhrijصحیح بخاری، الصوم، باب اذا جامع في رمضان ولم يكن ...... الخ، رقم : 1936