Is it compulsory for a muslim to declare ,Any false prophet and his follwers to be Kafir ? ?

As muslims believe that Prophet Mohammad (saw ) was the last Prophet ,So if any body claims to be a prophet ,Is it compulsory to declare him (False pophet) Kafir.?





Bcoz in islam the creed of '; Khatm e nabuwwat'; Is the one of the V important and basic Creed.Is it compulsory for a muslim to declare ,Any false prophet and his follwers to be Kafir ? ?
Yes i am agree that calling some ,Kafir is a big resposibility





Bcoz if u call any muslim ,A KAFIR,its a big sin.





But at the same time if u call Any kafir , A Muslim .This is also a sin and your iman is also doubtful.





So deciding about one's Kufr is not every body's JOB





Scholars of islam (Muslim Ulmas ) can decide it





So In QADYANIS ( So called Ahmedis ) case ,All Ulmas Agreed about their Kufr ,Now who ever Doubts in their Kufr His Iman Is also douibtful,


Bcoz Believing in'; Khat m e nabuwwat '; is one of the very importat believes. Who ever rejects this believe is not Muslim





Muslim should understand the importance of this belief ,If Muslims will not protect Islam from the false prophets ,Islam will bcome a Play ground ,every one can play .





Thats why Abu Bakr Siddique ,even that was the hard time for muslim,Did Jihad against Musailima Kazzab.Is it compulsory for a muslim to declare ,Any false prophet and his follwers to be Kafir ? ?
In Islam you can not call anyone a disbeliever unless the charge is 100% proved. The Quran mentions of prophets not named and every tribe had messengers and prophets, some even had a book. Also any one who claims to be God's messenger after Muhammad (saw) is a false prophet. Muahmmad (saw) claimed to be the last.
It is not our duty to declare anyone to be a Kafir (non-believer). Who are we to judge someone else's Iman (belief)? Belief in the Prophethood of Muhammad (pbuh) is a fundamental part of the Islamic belief, so anyone who does not accept that is considered a non-Muslim, but that does not mean that he is a non-believer.
To call someone a disbeliever is a very serious charge.If they accept all other parts of Islam then we can only say that Allah himself will judge.Such is the case of the Ahmadiyyah.Some say they are Muslims,some say they are not but only Allah knows best.