Is it permissible to take knowledge from an innovator if he is proficient in a branch of knowledge?

Question : It is possible that many of the people of innovation are vast in their knowledge, having broad horizons and so on, and a person fears for himself from them. But does this prevent him from attending their lessons in jurisprudence and hadith, especially if he is a student of knowledge who does not fear for himself from slipping in their statements?

Answer : This is if the man is an innovator, as I said, and he has extensive knowledge in some branches, and a person benefits from him. Attending his gatherings requires a distinction. If he fears that he, the attendee, will be accused of the innovator's innovation, he should not attend. If he fears that people will be deceived by this man because so-and-so attended him, he should not attend either. If he fears that this innovator will become arrogant and puffed up, and that his gatherings will be a place where so-and-so came to him and discussed such-and-such with him, he should not attend either. Otherwise, there is nothing wrong with attending, but leaving it is preferable in our time, because the knowledge we want from him can be obtained through others or through a recording, if the lesson is recorded.