My Ummah will be destroyed at the hands of a few lads of Quraish
There is a Hadith in Sahib Bukhari, Vol. 2, Kitab Ul Fitan:
Translation: ‘Amr bin Yahya Sa‘eed bin ‘Amr bin Sa‘eed narrates on the authority of his paternal grandfather; that he said: I was sitting along with Hadhrat Abu Hurairah (May Allah be well pleased with him) in the Prophet’s Masjid in Madina and Marwan was along with us. Hadhrat Abu Hurairah (May Allah be well pleased with him) said: I heard the Truthful Prophet (Sallallahu alaihi wa sallam) say: My Ummah will be destroyed at the hands of a few lads of Quraish. Marwan said: Allah curse such youngsters. Hadhrat Abu Hurairah (May Allah be well pleased with him) said: I can say 'so and so, son of so and so and so and so, if I want to. Hadhrat ‘Amr bin Yahya says: I, along with my grandfather, went to the Clan of Marwan when they were ruling over Syria and found that he was a young lad and my grandfather said shortly they will also become one of them. We said you understand this better.