The assertion that what the people of innovation do, which is not prescribed, is not acceptable

Question : May we assert that what the people of innovation do, which is not prescribed, is not acceptable?

Answer : Yes. Yes, we do not know, even in specifying it. Even if we see a person performing specific bid'ah (religious innovations), we say: Your action is not acceptable. Now, if we assume that this person is ignorant, and the ignorant person is not relied upon, do we say his action is not acceptable? Yes, we say his action is not acceptable, even though he may be rewarded for his good intention and his effort, but it is not accepted as a righteous deed.