What is the ruling on one who claims affiliation with the call to Allah but does not call to tawhid (the oneness of Allah) and does not warn against shirk (associating partners with Allah)?

Question:
May Allah reward you, Honorable Shaykh. This questioner says: Is this criterion correct? That whoever does not call to tawhid, does not warn against shirk, does not warn against bid'ah (religious innovations), and does not warn against innovators, is an innovator, and whoever does not declare him an innovator is an innovator like him?

Answer:
If he claims affiliation with the call to Allah but does not care about tawhid, does not care about shirk and warning against it, and does not care about encouraging adherence to the Sunnah, then he is more opposed to the methodology of the Prophets (peace and blessings be upon them) than an innovator. He is opposed to the methodology of the Prophets, because the Prophets cared about the creed, explained it, warned against shirk, and clarified the rulings of the Shari'ah. This is the methodology of the Prophets and the followers of the Prophets.