Scholar: ´Allâmah Sâlih bin Fawzân al-Fawzân
Translation & video: aFatwa.com (site not exists now)
Question: Does the one that listens to the cassette tapes of Ahl-ul-Bid’ah or reads their books in order to know what they believe fall into sitting with innovators?
Shaykh al-Fawzân: It is as sitting with them or maybe even worse. But if he is learned and armed with knowledge and listens to them or reads their books to refute them and warn against them, it is okay.
However, were he not to have knowledge and insight and wants to read them or listen to them, it is not allowed. It will get stuck into his head and he has nothing to repel it with. It is not allowed for him to listen to them if he cannot defend himself against these poisons and evilnesses.