The ruling on one who hears the Fajr adhan and has food in his mouth

Question:
The Shaykh once asked about the ruling on one who wakes up in Ramadan, hears the adhan, and drinks, but the adhan has not yet been called. And if he is in the middle of eating when he hears the adhan, does he spit out the mouthful or swallow it?

Answer:
For you, the adhan differs. If the adhan is called at the appearance of dawn, he must abstain from eating and drinking, because the adhan is at the appearance of dawn. But if the adhan is called early, he may eat and drink, based on the saying of the Prophet (peace and blessings be upon him) .
When Bilal used to call the adhan before dawn, the Prophet (peace and blessings be upon him) permitted eating and drinking. And when Ibn Umm Maktum used to call the adhan at the appearance of dawn, the Messenger (peace and blessings be upon him) prohibited eating and drinking. The calendar is a sign of the entry of the time, a sign that is among the indicators. Yes.