Sahih Bukhari Volume 009, Book 093, Hadith Number 565.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 93. Oneness, Uniqueness of Allah (Tawheed)
Narrated By Anas bin Malik : Allah's Apostle said, "Ad-Dajjal will come to Medina and find the angels guarding it. If Allah will, neither Ad-Dajjal nor plague will be able to come near it."