Holding Fast to the Qur'an and Sunnah

Bukhari :: Book 9 :: Volume 92 :: Hadith 422

Narrated Abu Sa'id Al-Khudri:

The Prophet said, "You will follow the ways of those nations who were before you, span by span and cubit by cubit (i.e., inch by inch) so much so that even if they entered a hole of a mastigure, you would follow them." We said, "O Allah's Apostle! (Do you mean) the Jews and the Christians?" He said, "Whom else?"