Assalamu Alaikum Warahmatullahi Wabarakatuh

May Allah swt reward you in the hereafter for all your hard work.

I was wondering what the difference is between bralveys and sunnis who follow the four imams. My workplace is full of bralveys and they tell me that they are on the right path and that celebrating the prophets peace be upon him's birthday is right (astakfruglah), and they say that the the prophet peace be upon him's uncle (who was a kaffer) celebrated his birth by freeing a slave (may allah swt forgive me for my translation). Can you explain this to me as I am confused and would like to tell them the correct method.

I was always told that you should read and follow the holy quran and follow the sunnah of our beloved prophet peace be upon him and his sahaba's.

Jazakallah khaire

Walaikum Asalaam