World Muslim League held its annual conference at Makkah Al-Mukaramma Saudi Arabia from 14th to 18th of Rabiul Awwal 1394 H (April 1974) in which 140 delegations of Muslim countries and organizations from all over the world participated. Here are the declaration :

Qadianism or Ahmadiyyat: It is a subversive movement against Islam and the Muslim world, which falsely and decietfully claims to be an Islamic sect; who under the guise of Islam and for the sake of mundane interests contrives and plans to damage the very foundations of Islam. Its eminent deviations from the basic Islamic principles are as follows:

1. Its founder claimed that he was a Prophet.
2. They deliberately distort the meanings of the verses of the Holy Quran.
3. They decalred that Jehad has been obolished.

Qadianism was originally fostered by the British imperialism. Hence it has been flourishing under her flag. This movement has completely been disloyal to and dishonest in affairs of the Muslim Ummah. Rather, it has been loyal to Imperialism and Zionism. It has deep associations and cooperation with the anti Islamic forces and teachings especially through the following nefarious methods:

1) Construction of mosques with the assistance of the anti Islamic forces wherin the misleading Qadiani thoughts are imparted to the people.
2) Opening of schools institutions and orphanages wherein the people are taught and trained as to how they can be more anti Islamic in their activities. They also published the corrupted versions of the Holy Quran in different local and international languages.

In order to combat these dangers, the Conference recommends the following measures:

1. All the Muslim organization in the world must keep a vigilant eye on all the activities of Qadianisin their respective countries; to confine them all strictly to their schools, institutions and orphanages only. Moreover he Muslims of the world be shown the true picture of Qadianism and be briefed of their various tactics so that the Muslims of the world be saved from their designs.
2. They must be declared non Muslims and ousted form the fold of Islam. And be barred to enter the Holy lands.
3. There must be no dealings with the Qadianis. They must be coycotted socially , economically and culturally Nor they be married with or to Nor they be allowed to be buried in the Muslims graveyards. And they be treated like other non Muslims.
4. All the Muslim countries must impose restrictions on the activities of the claimant of Prophethood Mirza Ghulam Ahmed Qadiani’s followers; must declare them a non Muslim minority must not etrust them them with any post of responsibility in any Muslim country.
5. The alterations effected by them in the Holy Quran must be made public and the people be briefed of them and all these be prohibited for further publication.
6. All such groups as are deviators from islam must be treated at par with the Qadianis.

Read Arabic Source about this declaration.

Source : Irshad.org