The Criterion for Determining the Intention in Fasting the Obligatory and Voluntary

Question:
Honorable Shaykh, this person asks about the criterion for determining the intention in fasting, whether it is for the obligatory fast or the voluntary fast.

Answer:
Yes. As for the obligatory fast, it is necessary to determine the intention and intend it before or at the time of the dawn. The Prophet (peace and blessings be upon him) said: The intention is from the night. So it is necessary to intend the obligatory fast before or at the time of the dawn. If the dawn breaks and he has not intended it, does the fast for that day count? No, but he abstains. He abstains and makes up that day.
As for if the fast is voluntary, and he has not eaten or drunk after the dawn, he may intend the fast during the day. Because the Prophet (peace and blessings be upon him) sometimes intended the fast during the day. So the voluntary fast is broader than the obligatory fast; he intends it from the night or from the day, on the condition that he has not eaten or drunk after the dawn. Yes.

The presenter:
May Allah reward you.