Sunnah Determination
Sunnah not only needs to come with Ijma and Tawatur but initially, it must be told and taught as Sunnah. Yes, of course, it is good. and good acts are rewarded.
Sunnah is all about “Fael”, not qawl. Qawl or hadith is mentioned in support to establish further that it is sunnah.
Taqreer o Tasweeb can be Sunnah. See attached file from Mizan.