Imam As Saadi said:
“The one who informs with other than that which Allah or his prophet sallallahu alaihi wa Salam informed with, or worships with something which neither Allah or his prophet sallallahu alaihi wa Salam permitted nor legislated, then he is an innovator.
And the one who prohibits permissible things or worships with other than that which is legislated, then he is an innovator.”
[Bahjatu Quloob Al Abraar page 28]
Majid Jawed Al-Afghanee