What do you understand from the Prophet Muhammad (peace be upon him) when he said, "The destruction of my followers will be brought about by the hands of some youngsters from Quraish"?
 Narrated Sa`id Al-Umawi:                     I was with Marwan and Abu Huraira and heard Abu Huraira saying, "I heard the trustworthy, truly inspired one (i.e. the Prophet ) saying, 'The destruction of my followers will be brought about by the hands of some youngsters from Quraish." Marwan asked, "Youngsters?" Abu Huraira said, "If you wish, I would name them: They are the children of so-and-so and the children of so-and-so."