Sahih Bukhari
Oneness, Uniqueness of Allah (Tawheed)
Volume: 009 / Book Number: 093 / Hadith Number: 565
Narrated 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."