Sahih Bukhari Volume 009, Book 093, Hadith Number 551.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 93. Oneness, Uniqueness of Allah (Tawheed)
Narrated By Al-Mughira bin Shu'ba : I heard the Prophet saying, "Some people from my followers will continue to be victorious over others till Allah's Order (The Hour) is established." (See Hadith No. 414)