This group (the so-called Ahmadi or Ahmadiya group) was founded by one Mirza Ghulam Ahmed from Qadian, a town in the district of Gurdaspur in India. He started his campaign by confronting non-Muslims in polemics. But later on when he found people reposing faith in him he started making improbable claims. In 1884 he claimed himself to be a "Mujaddid" of 14th century. In the year 1891 he disclosed a revelation, viz "Prophet Isa alaihis salaam is dead and thou art now the promised Masih as described in the holy Quran and Hadith". In 1892 he claimed himself to be both, Masih as well as Mahdi. In 1901 he claimed that whereas Christ is described as a "nabi" (prophet) in a Hadith [Sahih Muslim], therefore, he too was a "nabi" or prophet. In one of his pamphlets titled, "Ek Ghalati Ka Izalah" he claimed that he was exactly the same as Muhammed-ur-Rasool Allah (Allah forbid). In other words, he proclaimed himself as the re-incarnation of the holy Prophet PBUH and his prophethood. Mirza Ghulam Ahmad pronounced the following articles of faith to his followers:
Belief No. 1
That the holy Prophet Muhammad PBUH has reappeared in the shape and person of Mirza Ghulam Ahmad Qadiani, and in the verse of the Holy Qu'ran "MUHAMMAD-UR-RUSULLAH WALL LAZEENA MA'HU" Muhammad ur-Rasullah stands for Mirza Ghulam Ahmad Qadiani. (Ek Ghalati Ka Izalah).
Belief No. 2
The Qadiani faith places Mirza Ghulam Ahmad in the same respect, status, nomenclature, and honour as that of the holy prophet Muhammad PBUH. ( Al-Fazl, September 16, 1925, Qadiani Mazhab, p. 275).
Belief No. 3
The Qadiani faith enjoins upon all human beings to accept Mirza Ghulam Ahmad as we recognise the holy prophet PBUH, because from 14th century onward Mirza Ghulam Ahmad is a proclaimed prophet (Tazkirah p. 260).
Belief No. 4
The Qadiani faith considers Mirza Ghulam Ahmad as Khatam-ul-Anbia, the last prophet. (Al Fazl, 26th Sept 1915).
Belief No. 5
The Qadiani faith claims that the highest throne amongst the heavenly thrones is that of Mirza Ghulam Ahmad. (Haqiqatul Wahi, p. 89).
Belief No. 6
The Qadiani faith claims that Islam was just like a crescent of opening night (Shedding no light) while the Islam of Mirza Ghulam Ahmad's time is shining bright like the full moon of 14th night. (Khutba-e-Ilhamiyah, p. 183).
Belief No. 7
The Qadiani faith claims the spiritualism of Mirza Ghulam Ahmad is much better and comprehensive as compared to that of the holy Prophet PBUH. (Khutbat Ilhamiyah, p. 181).
Belief No. 8
The Qadiani faith claims that in this age following the holy Prophet PBUH alone is not 'madaare-e-nijat' (basis of salvation), but the madaar-e-nijat' is obedience to Mirza Ghulam Ahmad. (Arbaeen No. 4, p. 7).
Belief No. 9
The Qadiani faith deems everyone as disobedient to Allah and Rasool and hell- bound if one does not follow Mirza Ghulam Ahmad. (Istihar Meyar Alakhbar, dated 25 May, 1900).
Belief No. 10
The Qadiani faith termed all those persons as infidel and outside the pale of Islam if they did not declare faith in Mirza Ghulam Ahmad even though they did not hear his name. (Aina-e-Sadaqat, p. 35).
The above cited beliefs are a few examples of hundreds of misleading and blasphemous beliefs of the Qadianis. The learned Ulemas from East to West have therefore, declared in their unanimous "fatwas" since Mirza Ghulam Ahmad's times that Mirza Ghulam Ahmad and his followers are infidel,"murtad" and "zindeeq""(See Fatawas). Further more, Rabita Aalam-e-Islami, the paramount religious organization of the Muslim World, has in its meeting held in April 1974, (Rabiul Awwal 1394 AH) exhorted all Muslim world to enforce a ban on the activities of the Qadianis within their countries. The Majma-e- Alfiqahal Islami in their meeting on 22-28 December, 1985, at Jeddah called Qadianiat as infidelity and "zindiqah".
The first Asian Muslim summit conference in its session held at Karachi from 6 - 8 July, 1978, passed a resolution against Qadianis. Mirza Ghulam Ahmad had himself admitted in one of his pamphlets while addressing his followers that all Muslim Ulemas considered Qadianis as 'murtad' and liable to be slain. We quote from "Majmu'ah -e-Ishtaharaat, Vol 3". He says, "Do you think that by living in the Kingdom of Sultan-e-Room or by building a house in Makkah or Madinah you can escape the attacks of mischievous people? No, never! But you will be cut to pieces by their swords within a week. You must have heard the fate of Sahibzada Maulvi Abdul Lateef, a prominent and respectable person of Kabul State, commanding a group of followers numbering about 50 thousand. After embracing my faith and being impressed by my teachings he became opposed to holy war (Jehad), then Amir Habibullah Khan mercilessly got him stoned to death.
Do you still believe you can live a prosperous life under the Islamic Sultans? Rather, you will become an opposed target of the Islamic Ulemas who have already given verdict of your death. You have heard the "fatwa" of these Muslims who are against the Ahmadiyah sect. You have heard the fatwa of their Ulema, i.e. you deserve death in their view. In their eyes even a dog deserves mercy but not you. The "fatwas" of entire Punjab and India, rather the "fatwas" of the whole Islamic world have declared that you are liable to be slain. To loot your property, forcibly to bring your wives in their matrimonial bond, desecration of your dead bodies and disallowing your burial in Muslim graveyards - all these are considered not only justified but pious acts". End of quote.The fatwas of the Ulema of Islam and the above mentioned writings of Mirza Ghulam Ahmed are sufficient proof to show that Mirza Ghulam Ahmad and his Qadianis/Ahmadis group is a separate entity and not in any way connected with Islam.
Taken from: http://www.khatm-e-nubuwwat.com