We reject the rejected among the outward forms in the books of monotheism The divisions of commands and prohibitions and their types

Therefore, we must reject what is rejected in the Books of Monotheism [Tawhid] regarding the outward forms and follow what is established as tradition [the Sunna]; and we must reject what is rejected of their inward meanings as clarified by the People of Infallibility. In doing so, we will have reached the truth and been guided to the Straight Path [Al-Sirat al-Mustaqim]. Furthermore, it is not permissible for us to believe or profess a religion except that whose rightness is clear to us from their sayings, as the Great Master (peace be upon him) commanded us by saying:

An affair whose rightness is clear to you, follow it; an affair whose corruption is clear to you, avoid it; and an affair that is problematic to you, return it to Allah.

And our Master Abu Shu’ayb (peace be upon him) said: Do not take your religion except from those who have taken from us a text [Nassan] about us, part from part.

I shall now recite to you a mention of the knowledge of the categories of commands and prohibitions and their types:

Know—may Allah the Exalted grant you success—that the Master al-Sadiq (from him is mercy), in the book (Al-Sirat), said to al-Mufaddal ibn Umar (peace be upon him):