What is the ruling on the fasting of one who slept and did not know that Ramadan had entered?

The questioner : A man says: I slept on the night when the entry of the month of Ramadan is repeated, and I did not know that the month of Ramadan had entered. After I went out in the morning, I was informed that that day was a day of fasting, so I abstained from eating shortly after the Fajr prayer, near the rising of the sun. Is my fasting on that day valid, even though I did not have a prior intention before Fajr?

The Shaykh : Your fasting is valid because the intention follows knowledge, and you did not know that this day was from Ramadan.
And you are sleeping, and your intention is the intention of every Muslim: your intention is that if tomorrow is Ramadan, you are fasting. As long as this is your intention, you have slept with a valid intention. And if it is conditional, know that making rulings, intentions, and supplications conditional, and the like, is a matter established in the Shari'ah. Making legal rulings conditional is established, making supplications conditional is established, and making intentions conditional is the same. Regarding making legal rulings conditional: Qa'bah bint al-Zubayr (may Allah be pleased with her) came to the Prophet (peace and blessings be upon him) and said, "O Messenger of Allah, I want to perform Hajj, but I am ill with it." The Messenger of Allah (peace and blessings be upon him) said, "Perform Hajj and make the condition that if I am prevented where I am prevented, then you have upon your Lord what you have excepted." This is making a ruling conditional. Regarding making supplications conditional: Allah the Exalted said in the verse of the mutual oath-swearing in an accusation of adultery: "And the testimony of one of them is four testimonies by Allah that he is among the truthful, and the fifth is that the curse of Allah be upon him if he is among the liars." Is a supplication valid if made with a condition? Likewise, the guardians say, "And the anger of Allah be upon her if she is among the truthful." So a supplication is valid if made with a condition, and legal rulings are valid if made with a condition, except if a text comes down with the opposite. Thus, the Muslim who intended before knowing that tomorrow is from Ramadan, who intended while eating and believed in himself and returned to the idea that if it is from Ramadan, he is fasting: if he does not wake up until after the dawn has appeared and it becomes clear to him that this day is from Ramadan, he is upon his fasting, and his fasting is valid.