Whoever does not repeat ablution except after fallinginto deep sleep - losing consciousness completely

Narrated Asma' bint Abu Bakr: I came to `Aisha the wife of the Prophet (sallallahu 'alaihi wa sallam) during the solar eclipse. The people were standing and offering the prayer and she was also praying. I asked her, "What is wrong with the people?" She beckoned with her hand towards the sky and said, "Subhan Allah." I asked her, "Is there a sign?" She pointed out, "Yes." So I, too, stood for the prayer till I fell unconscious and later on I poured water on my head. After the prayer, Allah's Messenger (sallallahu 'alaihi wa sallam) praised and glorified Allah and said, "Just now I have seen something which I never saw before at this place of mine, including Paradise and Hell. I have been inspired (and have understood) that you will be put to trials in your graves and these trials will be like the trials of Ad-Dajjal, or nearly like it (the sub narrator is not sure of what Asma' said). Angels will come to every one of you and ask, 'What do you know about this man?' A believer will reply, 'He is Muhammad, Allah's Messenger (sallallahu 'alaihi wa sallam) , and he came to us with self-evident truth and guidance. So we accepted his teaching, believed and followed him.' Then the angels will say to him to sleep in peace as they have come to know that he was a believer. On the other hand a hypocrite or a doubtful person will reply, 'I do not know but heard the people saying something and so I said the same.' "