Amr bin Maymun narrated from his father, who narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them), that he said: I asked Sayyiduna Ibn Abbas (may Allah be pleased with them) about a person who witnessed two months of Ramadan and (did not fast), he said: Has this happened or not? Maymun said: No, so Sayyiduna Ibn Abbas (may Allah be pleased with them) said: Leave the calamity that has not yet occurred (i.e., do not ask about something that has not happened), so we made up a story about a person that he is facing this issue, then he replied that for the thirty fasts of the first Ramadan, he should feed the poor, one poor person for each day.
From all these traditions, it is established that the pious predecessors did not entangle themselves in hypothetical issues, and would only respond to matters that actually arose. They would also avoid issuing legal verdicts (fatwas) in contentious matters. Furthermore, it is affirmed that righteous, upright, and divinely guided servants of Allah, endowed with correct understanding, will always remain present. («جعلنا اللّٰه واياكم منهم.» Ameen) A person who, without a valid Shar‘i excuse, fails to fast two times in Ramadan is liable for both expiation (kaffarah) and making up the missed fasts (qada), that is, he must feed sixty needy people and fast for sixty days. See: [المغني لابن قدامة 401/4].