What is the ruling on one who eats or drinks while in doubt about the dawn, and then it becomes clear to him that it has risen?

The questioner : We previously asked about the ruling on one who eats or drinks while in doubt about the rising of the dawn, and it did not become clear to him, but what is the ruling on one who eats or drinks?

The Shaykh : Even if it becomes clear to him, because it was established for us regarding the things that break the fast that it is a condition that one must be certain. So if he eats while in doubt about the rising of the dawn, and then it becomes clear to him afterwards that the dawn has risen, he owes nothing.