The denial of the Prophet Muhammad (SAW) as the last and final Prophet and Messenger of Allah (SWT) is the denial of Islam. It is a rejection of revelation, it is dismissal of ahadith and it is a denunciation of the unanimous consensus of the ulamā (scholars) from the inception of Islam to the present day.

The Holy Qur’an is clear on this as Allah (SWT) says “Muhammad is... the Seal of the Prophets...” (33:40). The consensus of the ulamā from Abu Hanifah (RA), Ibn Hajar Al-Asqalani (RA), Jalaluddin Suyuti (RA) to companions such as Ibn Abbas (RA) among numerous others is that no prophet shall come after him. Imam Ghazali (RA) has said “...The hadith "Laa-Nabi Ba'di", the Prophet (SAW) meant, after him neither any Nabi (Prophet) will come nor any Rasool (Messenger).  The Ummah is also unanimous on this point that there is no scope of any other meaning or exception to it.” (Al-Iqtisad fil-Itiqa, Page 114)

The ahadith are clear on this matter, the Holy Prophet Muhammad (SAW) has stated many times “...There will be no prophet after me” (Bukhari) and “Prophethood will not continue after me” (Musnad Ahmad), in so much that there are over a hundred ahadith on this alone. To reject the words of the Prophet Muhammad (SAW) you are denying him and to deny him is to deny Allah (SWT).