Innovation: Why is it called innovation, does it include a good innovation, and how many categories does it have?

Question:
Innovation: Why is it called innovation, does it include a good innovation, and how many categories does it have?

Answer:
Answer: Innovation, as the Prophet (peace and blessings be upon him) said: “Whoever introduces into our affair something that is not part of it,” is an act of worship that a person proposes, for which there is no evidence from the Book and the Sunnah, intended to draw near to Allah. It is invalid and is returned to its doer. It is obligatory to restrict oneself to what is established in the Book and the Sunnah, and to leave innovations and stay away from them. The Prophet (peace and blessings be upon him) said: “And beware of newly invented matters, for every newly invented matter is an innovation, and every innovation is misguidance.” In another narration: “And every misguidance is in the Fire.” It is obligatory to stay away from innovations. The Prophet (peace and blessings be upon him) said: “Whoever does a deed for which there is no command from us,” meaning that we did not prescribe it, and Allah (Glorified and Exalted is He) did not prescribe it, is an innovation. One must restrict oneself to what is established of acts of worship and obedience, and a person should not introduce an addition by which he draws near to Allah, which is not prescribed in the Book and the Sunnah.