@sim @Moon oh! that's also an interesting topic, as the prophets from Adam to Isa (Jesus) get alaihissalam (peace be upon him), for instance Prophet Isa (as), whereas Muhammad, being the last and most important prophet, gets sallahu alaihi wassalam (Blessings of God be upon him as well as peace), often abbeviated as "saw", so Prophet Muhammad (saw)

https://en.wikipedia.org/wiki/Islamic_honorifics