The Adab was learnt by…

The Adab was learnt by the Sahabah (RAA) from the Prophet (ﷺ) without him necessarily having to separately teach them formally. This is important, since the spiritual reality in his (ﷺ) presence is something that cannot be achieved by our teachers today, thus the need for a formal separate field for spirituality, for Adab, etc. It is just like the teaching and categorization of the Arabic language, or Fiqh, and so on. These are not innovations (Bid’ah, in the negative sense), rather if anything they are necessary in order to further the cause of Islamic knowledge, its preservation and diffusion.