I haven't finished my meal or glass of water but the adhan for fajr has been called. Is my fast broken if I continue to eat or drink while the adhan is going on?
There are many narrations where the adhan was called and the companions finished eating whatever food was in their hands while the adhan continued...
Shaykh Waleed Basyouni explains and further answers the question
If the person is eating and hears the Adhan, or is about to drink and hears the Adhan, should they stop immediately or can the person finish?
Actually, in this regard, there's a hadith of Nabi صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ , he said if the Muadhin calls the Adhan while you have something, a container in your hand and you desire it, don't put it down until you fulfill your desire from it. And there are many narrations from the companions radiallahu anhu, Ibn Mas'ud and others that the Adhan was called, they were eating and they finished whatever it was in their hand while the Adhan is called.
And first of all, this goes back to simple fact that Nabi صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ , the Adhan, that it was made as a signal for the forbidding of eating and the person should not eat anymore, was the Adhan of Abdullah Ibn Umm-Maktoom.
And he was a blind person. And they used to come to him and tell him, "Fajr entered," and he walked to the place where he called the Adhan, and he would start calling the Adhan. So here from the moment that they notice the Fajr until the moment he called the Adhan, you're talking about a minute or two so, things are not as restricted, and by seconds, like some people might think. So that's why I would say that if the Adhan is called and you still desire that thing or maybe you woke up late, you are allowed to eat or drink, as long as the Adhan still exist. But if you don't desire that water or that food, it's better to avoid it. But your fasting, inshAllah, will be correct.