Al-Imaam Muhammad ibn Saalih
al-'Uthaimeen (may Allaah have mercy upon him) stated:
"In this matter there are five
categories:
1. The person is sure that Fajr
hasn't appeared. As an example: The appearance of Fajr is at five o'clock and
the person ate and drank at four thirty. His fast is sound.
2. The person is sure that Fajr has
appeared. As an example the person ate at five thirty (although Fajr appeared
at five). This person's fast is invalid.
3. The person eats but he's not sure
whether or not Fajr has appeared. However it overwhelms his belief that Fajr
hasn't appeared. His fast is sound.
4. He eats and drinks and it
overwhelms his belief that Fajr has appeared. His fast is not sound.
5. He eats and drinks wavering back
and forth (as to whether Fajr has appeared or not) and there's nothing
overwhelming with him in this matter. His fast is sound."
The Shaykh went on to say:
"Even if it becomes clear to him that Fajr had appeared already, his fast
is sound based upon (the principle in Islaam of) being excused due to ignorance
in this situation."
Taken from: "ad-Durur
al-Manthoor fee Ahkaam al-Iftaar was-Suhoor" pg. 76 Quoting from Imaam
al-'Uthaymeen's explanation of Zaad al-Mustaqnaa (6/408-409)
Translated by Abu Yusuf Khaleefah
Masjid Nur Allaah
2nd Night of Ramadaan/ 21st of July
2012