The Harm of Shaving the Beard

Hazrat Shaikh (Rahmatullahi Alaihi) mentioned: 

Today, people do not regard the shaving of the beard as a sin. Once, two kaafir messengers, with shaven beards, came to Nabi (Sallallahu Alaihi Wasallam). Nabi (Sallallahu Alaihi Wasallam) turned his blessed face away (from them). Oh my beloved friends! After death when one appears before Rasulullah (Sallallahu Alaihi Wasallam), then if at that time Rasulullah (Sallallahu Alaihi Wasallam) had to turn his blessed face away from one, what will one do?!! (Malfoozaat of Hazrat Shaikh pg. 160)