Fatāwā al-Ĥaramayn bi Rajafi Nadwati’l Mayn
Rulings of the Two Sanctuaries Quaking the Foundations of Deceptive Assembly
A collection of fatāwā refuting the Nadwah and its conglomerate of assorted heretics: Wahabīs, Rāfīđīs and Naturalists. This association was formed to unify Sunni scholars, but instead turned out to be a quasi-perennialist society. Alahazrat and many other Sunni scholars distanced themselves from it and refuted the Nadwah after the first conference revealed its true nature.
This is a fatwā answering 28 questions; and Alahazrat wrote it in a mere twenty hours. This was sent to prominent scholars in the ĥaramayn who attested it and praised its author. A manuscript of this fatāwā numbered MS.698 can be found on the website of the King Saud University as of this writing. I first discovered this manuscript on an older version of the website [makhtota.ksu.edu.sa], attributed to ‘Ábdu’l Muşţafā’ – and we posted this information on our forums; not long thereafter, the curators removed information about the MS, presumably to prevent it from being digitally searched; also, four pages criticizing (critical of) the Wahābīs have disappeared (have been quietly removed, have been suppressed, are no longer available).
 Where perennialists argue that “all religions lead to truth,” Nadwa claimed to unify all who say lā ilāha illā Allāh, irrespective of their orientations, aberrations or heresies.
 Revised edition, October 2015.
Dar Ahl al-Sunnah has published this in modern format with footnotes (linked).
Old editions are also available. See here, here, and here.