What is the ruling on the fasting of a family that ate the pre-dawn meal after the second call to prayer until the second call was made, and then they abstained from eating?

Question:
May Allah reward you, Honorable Shaykh. Four voices. May Allah bless you and reward you with good. As for the first question in this session, its asker says: A family ate the pre-dawn meal after the second call to prayer until the second call was made, and then they abstained from eating, knowing that they had heard the voice of the second caller. What is the validity of their fasting?

Answer:
Their fasting is not valid. If they continued to eat and drink until the second call was made, their fasting is not valid, because they are eating and drinking during the day, and they had heard the caller, and it was obligatory for them to abstain and fast, but they did not do so; rather, they continued to eat and drink until the second call was made. Their fasting is not valid for these people, so they must abstain for this day and make it up on other days.