Abstaining from food and drink at the second call to prayer during fasting

Question:
He says: Shaykh, I advised my mother to abstain from eating at the second adhan, but she says that the white thread has not yet appeared. What is your advice to her, and is her fasting accepted?

Answer:
It is better to stop at the adhan as a precaution. Let the one who is eating or drinking what does not cause him doubt continue. If he eats a bite or drinks something while the adhan is being called, there is no harm as long as he does not know that the dawn has appeared, because the adhan is called as a precaution and based on calculation. If he drinks while the adhan is being called, or eats a bite while the adhan is being called, there is no harm, if Allah wills. As for the one who is in the desert, he must stop at the time of the dawn, even if he does not hear it, because the intended meaning is the statement of the Exalted and Majestic is He: until the white thread becomes distinct. They were not permitted to eat or drink except in what is before the distinctness of the dawn. If it becomes distinct, they are prevented. If one is in the wilderness and the dawn becomes distinct to him, he must abstain. As for the one who is in the town, there is no objection, out of necessity, to drinking something in his hand at the time of the adhan, or eating a bite; there is no harm. However, the precaution for him is to finish at the adhan. He should hasten a little so that the end is near the adhan. The Prophet (peace and blessings be upon him) used to delay his pre-dawn meal until it ended near the adhan, peace and blessings be upon him.