If an apostate repents, does he have to make up the fasts that he missed before he apostatised?

Reviling any of the Prophets constitutes disbelief and apostasy

What are the consequences of uttering words of disbelief (kufr)

He uttered a phrase cursing [someone’s] religion, but did not complete the phrase; and the difference between annulment of good deeds and annulment of the reward for good deeds

Ruling on saying “May the gods curse you”

Guideline on what actions and words are regarded as mocking religion

Does a person become a disbeliever if he does not know the actions or words that could render a person a disbeliever, even if he does not do them?

She is not sure whether she went out of Islam; does she have to do ghusl?

Warning against jokes that mock some verses of the Quran

Refutation of those who claim that the hadiths which speak of executing the apostate are contrary to the Quran