What is the ruling on one who drinks ten minutes after the Fajr adhan while intending to perform the obligatory fast?

Question:
He says: Honorable Shaykh, may Allah grant you success. A person drank ten minutes after the Fajr adhan, for example, while intending to perform the obligatory fast, and he drank deliberately. He asks: What is the ruling on his fast, and what is obligatory for him?

Answer:
If he drank after the adhan, or during the adhan called for Fajr, his fast is not valid, because he drank after the appearance of Fajr. He drank after the appearance of Fajr deliberately, so his fast does not take effect. He must refrain from drinking before the appearance of Fajr. So, if the mu'adhdhin is calling the adhan at the time of Fajr's appearance, it is not permissible for you to drink. But if he calls the adhan early, the first adhan, there is no harm in drinking, because Fajr has not yet appeared. Yes. And Allah the Exalted knows best, and may Allah send prayers and peace upon our Prophet Muhammad and upon his family and his Companions.