Sahih Bukhari Volume 001, Book 008, Hadith Number 467.
Narated By Ibn 'Umar or Ibn 'Amr : The Prophet clasped his hands, by interlacing his fingers. Narrated 'Abdullah that Allah's Apostle said, "O 'Abdullah bin 'Amr! What will be your condition when you will be left with the sediments of (worst) people?" (They will be in conflict with each other).