Al-Ḥāfidh al-Dhahabī said (Tadkhirat al-Huffādh, 2/1496):
The Shaykh, the Imām, the ʿAllāmah, the Hāfidh, the Nāqiḍ (Skilled Critic), the Faqīh, the Mujtahid, the Mufassir, the Proficient, the signpost of the ascetics, the outstanding phenomenon of the era, Taqī al-Dīn Abū al-ʿAbbās Aḥmad bin al-Fatī Shihāb al-Dīn ʿAbd al-Ḥalīm [Ibn Taymiyyah]... And he was amongst the oceans of knowledge, from the limited intellectuals, the ascetics, the unique individuals, the great braves, the most generous nobles. He was praised by both the one who agreed with him and the one who differed with him and he became famous by his works, and perhaps they number three-hundred volumes... He held certain rulings which were unique to him and on account of which his honour was attacked. But these are obscured by the (vast) ocean of his knowledge, and Allāh, the Most High, will pardon him and will be pleased with him. I have not seen the likes of him, and the speech of every person from this ummah can be accepted or rejected, so what was he [except one from this ummah]?
From the forthcoming publication, "The creed of the Early Kullabi Ash'aris."