Hadith 6711
Sayyiduna Abu Huraira (may Allah be pleased with him) narrates that the Prophet (peace and blessings of Allah be upon him) said: "The destruction of my Ummah will be through the foolish youths of the Quraysh."
(The narrator states: Upon hearing this hadith of Sayyiduna Abu Huraira, Marwan said: These youths are the very people (who are the rulers of today).)