A Muslim starting and ending Sawm according to his country

Q: A person was listening to the radio of Cairo and Kuwait when they announced that Sunday was the first day of `Eid-ul-Fitr (the Festival of Breaking the Fast) and he accordingly stopped fasting on this day. Knowing that the radio of Riyadh announced that Monday was the first day of `Eid-ul-Fitr, what is the ruling on the actions of this person?

A: If the questioner was residing in Saudi Arabia during the night and day of Sunday, he is obliged to adhere to what is followed in this country. Sunday was not proved to be the first day of Shawwal in Saudi Arabia, rather it was the last day of Ramadan. Accordingly, he must make up for this day, ask Allah's Forgiveness for deviating from the conduct of Muslims in this country and not to repeat this act.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.