The ruling on one who breaks his fast before the sun sets while the sky is cloudy

Question: If the sky is cloudy and the mu'adhdhin calls the adhan, and some people break their fast based on the mu'adhdhin's call, and it becomes clear to them after breaking their fast that the sun has not set, what is the ruling on the fast in the situation described?

Answer: It is obligatory for the one who this happens to him to abstain until the sun sets, and he must make up the fast according to the majority of scholars, and there is no sin on him if he broke his fast based on ijtihad and seeking the time of sunset. This is like if a person starts the day fasting on the thirtieth day of Sha'ban, and then it is confirmed that it is Ramadan during the day; in that case, he must abstain and make up the fast according to the majority of scholars, and there is no sin on him; because when he ate or drank, he did not know that it was Ramadan, so ignorance of that removed the sin from him, but as for making up the fast, he must make it up.