Sahih Bukhari, Chapter: Actions while Praying

Once the sun eclipsed and Allah's Apostle stood up for the prayer and recited a very long Sura and when bowed for a long while and then raised his head and started reciting another Sura. Then he bowed, and after finishing, he prostrated and did the same in the second Raka and then said, "These (lunar and solar eclipses) are two of the signs of Allah and if you see them, pray till the eclipse is over. No doubt, while standing at this place I saw everything promised to me by Allah and I saw (Paradise) and I wanted to pluck a bunch (of grapes) therefrom, at the time when you saw me stepping forward. No doubt, I saw Hell with its different parts destroying each other when you saw me retreating and in it I saw 'Amr bin Luhai who started the tradition of freeing animals (set them free) in the name of idols."