Takfeer And The Scholars In The Past
Yes, infact Abu Hanifa fought against the ideology of Takfir as done by Khawarij and related ideology of Mutazilites as well. It is narrated that on the issue of a Muslim who commits a major sin , the khawarij placed the law of kufr above them , however, others refrained from doing so and entrusted everything to Allah ( So they were called Murjia since they delayed judgement ). The Mutazilites also used to call every such person a Murjia who did not believe that one who commits a major sin will remain forever in Hell. It is for this reason, they considered Imam Abu Hanifa, Imam Abu Yusuf and Imam Muhammad to be Murjias.