"And We have sent you not but as a mercy for the 'Alameen" (Mankind, Jinn and all that exists).
Quraan: Sura Al-Anbiya Ch 21 Ayat 117
"Wama arsalnaka illa rahmatan lilAAalameena"
Mazhar Ali Khan tells us, that Allah Ta'aala being Rabbil Aalameen, Sent Rasool e Akram Sallallahu Alai wa Sallam to his creation as Rahmatallil Aalameen, And goes on to tell us what is expected of the Ummat that Follows him (Sallallahu Alai wa sallam) .......