The Hadith and Hadith Sciences

I advise you to fear Allah, and to listen and obey even if a slave is appointed as your leader. Whosoever among you shall live after me will see much discord. So hold fast to my Sunnah and the Sunnah of the Rightly-Guided Caliphs Convey from me even if one verse, and narrate from the Children of Israel, and there is no sin in doing that. And whoever intentionally tells a lie about me, let him occupy his seat in Hellfire Lo! Soon a Hadīth from me will be conveyed to a man, while he is reclining on his couch, and he says: ‘Between us and you is Allah’s Book I advise you to fear Allah and to hear and obey, even if an Abyssinian slave. You will see after me great discord. So, hold fast to my Sunnah and the Sunnah of the rightly guided Caliphs Whoever reports a Hadīth on my authority that is thought to be false is one of the two liars Do not write down anything from me, and he who wrote down anything from me except the Qur'an, he should erase it. But, narrate from me, for there is nothing wrong in doing so. Whoever attributes any falsehood to me, let him occupy his seat in Hellfire Whoever tells a lie about me intentionally, let him take his seat in Hellfire There will be in the latter time of my Ummah people who will narrate what neither you nor your fathers have heard. Beware of them Write down; for by the One in Whose Hand my soul is, nothing comes out of it except the truth From the gravest of lies is someone who ascribes himself to other than his biological father, or claims to have seen something in a dream which he actually never saw, or ascribes something to the Messenger of Allah (may Allah's peace and blessings be upon him) which he did not say