و عليكم السلام ورحمةالله وبركاته
If this thing is according to shariah, then its is permissible but if not, you dont have to follow it.
And whats up with the word "wahhabi" ? Sheikh Muhammad bin abdul wahhab was prominent scholar and he has written great books on topic "tawheed". He has written about many kinds of shirk this is why he is considered " extremist" by "Non muslims" and many of the muslims. Most of his followers, i would not say " followers" as we all are followers of our prophet sallallahu alayhi wasallam, i meant those who read his books mostly are from ahle sunnah wal jamaah, and its not a sect!
In short, any kind of matter related to deen which is out of Quran and sunnah is bidah. There are surely many methods in shariah which you can follow instead of these wazifah.