Narrated `Abdullah:
Five things have passed, i.e. the smoke, the defeat of the Romans, the splitting of the moon, Al-Batsha (the defeat of the infidels in the battle of Badr) and Al-Lizam (the punishment)'.
USC-MSA web (English) reference: Vol. 6, Book 60, Hadith 345
Arabic reference: Book 65, Hadith 4820