Oh yes we keep hearing about the Sola Scriptura heresy all the time like little bombs in conversation. This is a division of thought in many many religions but the phrase "Sola Scriptura" directly reminds the Christian-Lutheran position and the opposing institutionalised elders.
The irony is...
If any sort of theological position is to be proven using the Bible, then it must follow that the Bible has to teach that only the Bible is the source of theological truth. What would you say if someone said that Sola Scriptura is unbiblical?