Hafidh al-Sakhawi (D. 902AH) on ibn Taymiyya:
وكذا ممن حصل من بعض الناس منهم نفره وتحامى عن الانتفاع بعلمهم مع جلالتهم علماً وورعاً وزهداً لإطلاق لسانهم وعدم مداراتهم بحيث يتكلمون ويجرحون بما فيه مبالغة كابن حزم وابن تيمية
“There are also those scholars of great learning, austerity, and asceticism whom people avoided and whose knowledge they were careful not to utilise, because of their loose tongue and lack of tact, which caused them to talk and criticise excessively. Such men were ibn Hazm and ibn Taymiyya.”
[al-Sakhawi, I’lan bi al-Tawbikh (pg. 163), (English translation in ‘A history of Muslim Historiography‘, pg. 284, by F. Rosenthal)]
The Reality of ibn Taymiyya 