Abu Hurairah said: A man came to the Prophet ﷺ. He broke his fast during Ramadan. He then narrated the rest of this tradition adding: Then a huge basket containing fifteen sa's of dates was brought to him. He said: Eat it yourself and your family and keep one fast and beg pardon of Allah.
Explanation & Benefits
Shaykh Umar Farooq Saeedi
Benefits and Issues:
It is obligatory to make up (qada) the fast if it is broken.
Imam Shafi'i rahimahullah has an opinion that if one fasts for two consecutive months, then making up (qada) is not required; however, in the case of freeing a slave or feeding the poor, making up (qada) is obligatory.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 2393