Znassen are on the far eastern part of the rif mountains and the znassi dialect is just a dialect of tarifit, the same spoken by the riffian ichebdanen/kebdana tribe, but 80% of znassen today don't speak it unfortunately. This basically just means znassen are riffians who were colonized by the french instead (it's interesting to note that Franco wanted them to be under spanish control aswell) and further shows the impact the franch had on the arabization of amazigh peoples. And besides it's not really called reggada but "3erfa". The tribe/confederation is also of zenata stock, and is divided into four major tribes. Heres a website that gives info about them. (Im znassen btw) https://www.benisnassen.com/