In the same way an illegitimate child yearns for acceptance from the hostile world around it - and searches out for a father to adopt it - the early Nasibis who were rejected by the majority, walked the wilderness desirous of a father to codify their hypocrisy into aqeedah. The Devil provided for them, by introducing them to Ibn Taymeeya - and their central source of deviancy comes from him. Revered to the point of Sainthood by the Nasibis, it is interesting to note that his contemporaries didn't ascribe to the same view; on the contrary they vilified him. Ibn Hajr al Asqalani in his biography of Ibn Taymeeya lists the differing views amongst the Ahl'ul Sunnah scholars.
For the purposes of this discussion it will suffice to quote the following.
"Others considered him a hypocrite [munaafiq] because of what he said about Ali ... that he had been forsaken (makhdhoolan) everywhere he went, had repeatedly tried to acquire the Khilafah and never attained it, fought out of lust for power rather than religion, and said that "he loved authority while Uthman loved money." He would say that Abu Bakr had declared Islam in his old age, fully aware of what he said, while Ali had declared Islam as a boy, and the boy's Islam is not considered sound upon his mere word... In sum he said ugly things such as these, and it was said against him that he was a hypocrite, in view of the Prophet's (s) saying (to Ali): "Only a hypocrite would show you hatred". "al-durar al-kaamina fi ayaan al-mi'at al-thaamina" by Ibn Hajar al-Asqalani's in the biography of Ibn Taymeeya (printed in Hyderabad: Daa'irat al-maaarif al-uthmaaniyya, 1384 H, vol. 1:153-155)
Ibne Hajar in Fatawa al Hadeesa page 86 on Ibn Taymeeya:
"Ibn Taymeeya is such a man that may God disgrace him, lead him astray, blind him and make him dumb"
In Al Badr ul Thalay page 67 Volume 1 Muhammad Shawkani states:
"Maliki Judge Ibn Mukhlauf gave a fatwa that Ibn Taymeeya if not killed should be confined for the rest of his life, Ibn Taymeeya's kufr was then proven and it was declared in Damascus 'Whoever followers Ibn T aym,eys it is permissible to kill him and take his property".
We read in Jahar Munazzam Fi Ziyarath ai Kubra al Mukurrum taken from Isthaksa page 264: "Ibn Hajr Makki condemned Ibn Taymeeya saying "How can we rely on him on matters of Deen? This Ibn Taymeeys is a misled person and God had cloaked him in disgrace, the Ulema of the time demaded that he be killed, or imprisoned, the Kings imprisoned him and he died in jail".
Deobandi scholar Anwar Shah Kashmiree in Anwar al Bari Volume 6 pages 220-221 states: "Tahavi's acceptance of the hadith 'Radd ai Shams' as true and Ibn Taymeeya's reaction against Tahavi, indicates that he had Khwaarij views".
(Our note: Radd ai Shams is the hadith in which Imam Ali (as) returned the sunset via the poiniting of his finger).
Shah Abdul Aziz in Fatawa Azizi Volume 2 page 79:
"The pen of Ibn Taymeeya in Minhajj at some points is so atrocious, in particular his views on Ahl'ul bayt where he has sought to play down their merits, prohibits visiting the tomb of Rasulullah (s), is opposed to Saints and condemns the Sufis. According to the views of Ahl'ul Sunnah his pen is cursed, his writings cannot deemed to be those of the Ahl'ul Sunnah".
