Jubayr bin Mut`im, may Allah be pleased with him, said that he heard the Messenger of Allah say:

«إِنَّ لِي أَسْمَاءَ أَنَا مُحَمَّدٌ، وَأَنَا أَحْمَدُ، وَأَنَا الْمَاحِي الَّذِي يَمْحُو اللهُ تَعَالَى بِيَ الْكُفْرَ، وَأَنَا الْحَاشِرُ الَّذِي يُحْشَرُ النَّاسُ عَلَى قَدَمَيَّ وَأَنَا الْعَاقِبُ الَّذِي لَيْسَ بَعْدَهُ نَبِي»

(I have several names: I am Muhammad, and I am Ahmad; I am Al-Mahi (the eradicator) through whom Allah will erase disbelief; I am Al-Hashir (the gatherer) at whose feet mankind will gather; and I am Al-`Aqib (the final one) after whom there will be no Prophet.) It was also recorded in the Two Sahihs. And there are many other Hadiths on this topic. Allah has told us in His Book, and His Messenger has told us in the Mutawatir Sunnah, that there will be no Prophet after him, so that it may be known that everyone who claims this status after him is a liar and fabricator who is misguided and is misguiding others. Even if he twists meanings, comes up with false claims and uses tricks and vagaries, all of this is false and is misguidance as will be clear to those who have understanding. This is what Allah caused to happen in the case of Al-Aswad Al-`Ansi in the Yemen and Musaylimah the Liar in Al-Yamamah, whose false miracles and nonsensical words showed everyone who was possessed of understanding that they were liars who were leading people astray; may the curse of Allah be upon them both. This is the case with every false prophet until the Day of Resurrection, until they end with Al-Masih Ad-Dajjal (the Antichrist). Each of these liars is given by Allah signs which show the people of knowledge and the believers that his message is false -- which is part of the perfect kindness of Allah towards His creation. These liars do not enjoin what is good, nor forbid what is evil, unless they do so by coincidence or because it serves an ulterior purpose. They are the utmost in falsehood and immorality, in all that they say and do, as Allah says:

﴿هَلْ أُنَبِّئُكُمْ عَلَى مَن تَنَزَّلُ الشَّيَـطِينُ - تَنَزَّلُ عَلَى كُلِّ أَفَّاكٍ أَثِيمٍ ﴾

(Shall I inform you (O people!) upon whom the Shayatin descend They descend on every lying, sinful person.) (26:221-222) This is in contrast to the Prophets -- may blessings and peace be upon them -- for they are the utmost in righteousness, truthfulness, wisdom, uprightness and justice in all that they say and do, command and forbid. In addition to this they are supported with miracles and clear and obvious proof. May the blessings and peace of Allah be upon them always, as long as heaven and earth remain.

﴿يأَيُّهَا الَّذِينَ ءَامَنُواْ اذْكُرُواْ اللَّهَ ذِكْراً كَثِيراً - وَسَبِّحُوهُ بُكْرَةً وَأَصِيلاً - هُوَ الَّذِى يُصَلِّى عَلَيْكُمْ وَمَلَـئِكَتُهُ لِيُخْرِجَكُمْ مِّنَ الظُّلُمَـتِ إِلَى النُّورِ وَكَانَ بِالْمُؤْمِنِينَ رَحِيماً - تَحِيَّتُهُمْ يَوْمَ يَلْقَوْنَهُ سَلَـمٌ وَأَعَدَّ لَهُمْ أَجْراً كَرِيماً ﴾

(41. O you who believe! Remember Allah with much remembrance.) (42. And glorify His praises morning and Asila.) (43. He it is Who sends Salah on you, and His angels too, that He may bring you out from darkness into light. And He is Ever Most Merciful to the believers.) (44. Their greeting on the Day they shall meet Him will be "Salam (Peace!)'' And He has prepared for them a generous reward.)