Assalam o 'alaykum, Ibn Kathīr was a student of Ibn Taymiyyah and like his teacher, he too objected to a number views upheld by the Aĥl as-Sunnah wa al-Jama’ah. It was from the ideology of his teacher Ibn Taymiyyah, that the Waĥābī sect was born. Furthermore, Ibn Kathīr, much like his teacher, also agreed to ideas such as the belief of tajsīm, amongst others.