Sayyiduna Mughirah bin Shu’bah (may Allah be pleased with him) says: I heard the Messenger of Allah (peace and blessings be upon him) say,“To lie about me is not like lying about anyone else. (Because lying about someone else may harm the liar himself, or the one about whom the lie is told, or at most three people. But lying about the Messenger of Allah (peace and blessings be upon him) can mislead an entire world and harm mankind.) So whoever deliberately lies about me, let him prepare his abode in the Hellfire.”