Imaam Maalik (rahimahullaah) said: Beware of Bidah!
Imaam Maalik (rahimahullaah) said: Beware of bidah! So it was said, “O father of Abdullaah! What is bidah? He said, “The people of bidah-those who speak (with speculation) about Allaah’s Names, His Attributes, His Speech, His Knowledge and His Qudrah, and they do not keep quiet about what the Sahaabah kept quiet about and those who followed them exactly in faith.”
Imaam Maalik (rahimahullaah) also said: “If philosophical rhetoric was knowledge, the sahaabah and their followers would have spoke about it just as they spoke about the rulings of the Religion; but it (i.e. philosophical rhetoric) is falsehood and leads to falsehood.”
Sharhus Sunnah of Imaam Al-Baghawiy (1/217)