Musnad Ahmad 30:856

Muhammad ibn Ja'far narrated to us, Shu'bah narrated to us, from Simak, from Malik ibn Dhalim, he said: I heard Abu Hurairah saying: I heard the Messenger of Allah, Abu al-Qasim, peace and blessings be upon him, the truthful, the believed, saying: "Verily, the destruction of my nation, or the corruption of my nation, will be at the hands of young, foolish leaders from Quraysh."