I heard in one lecture about "signs" of the Last Day (qiyamat) that "authentic signs are only two and both of them have already been fulfilled. Third one is about Gog and Magog, yet to be fulfilled. Others all signs we usually hear, are not authentic. My question is that I also heard that at the time of qiyamat "no Muslim would be alive and Qur’an would be no more preserved in this world" Is that true? I mean is it possible that qiyamat could come even when good people and Muslims people would be living in the world? Because by that saying, many people say that "qiyamat will not come at the moment because there are still many Muslims (good one) living here and Qur’an is still among us.