Is it essential to stop eating and drinking as soon as one hears the adhaan for Fajr?

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Check below answers in case you are looking for other related questions:
Which is more precise, the adhaan of the mosque or the electronic adhaan?
When should one stop eating and drinking? And what is the ruling on one who has the vessel in his hand when hearing the adhaan?

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Related Answers:
He carried on eating sahoor even though he could hear the adhaan from a TV channel
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Which is more important, repeating the word of the adhaan or hastening to break the fast?
Which is more precise, the adhaan of the mosque or the electronic adhaan?
When should one stop eating and drinking? And what is the ruling on one who has the vessel in his hand when hearing the adhaan?

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