What is the ruling for one who did not know that Ramadan had begun until the daytime?

The questioner : Praise be to Allah, Lord of the worlds. The questioner says: A man slept the night of

The Shaykh : He says: Raise your voice. My voice is a bit low. The description of the valleys.

The questioner : Ramadan, and then the sighting of the crescent moon was announced, and the man was in a state of not fasting. Then he learned that Ramadan had been announced. Does he have to abstain and complete the fast for that day? And does he have to make up that day or not? It is known that he did not declare his intention to fast.

The Shaykh : Yes, this man who slept on the first night of Ramadan before the month was confirmed and did not form the intention to fast. Then he woke up and learned, after the dawn had appeared, that the day was from Ramadan. When he learns this, he must abstain; he must hold back. And he must make up the fast according to the majority of the scholars.
And as far as I know, no one differed on this except Shaykh al-Islam Ibn Taymiyyah (may Allah have mercy on him), for he said that the intention follows the knowledge, and this man did not know, so he is excused. He did not leave the intention, meaning he did not leave forming the intention after his knowledge, but he was ignorant, and the ignorant person is excused. On this basis, if he abstained from the time he learned, his fast is valid and he does not have to make it up. As for the majority of scholars, they said that he is required to abstain and required to make it up, and they explained this by saying that a part of the day was missed without