The Shafaa-at (Intercession) of Rasulullah (sallallahu alayhi wasallam) will be for the sinners of his Ummah. This is the belief of the Ahlus Sunnah Wal Jama'ah. Hadhrat Ma'roof Karkhi (rahmatullah alayh) said:
"To hope for Shafaa'at (of Rasulullah - sallallahu alayhi wasallam) without obedience to his Sunnah is stupidity."
To gain the Shafaa-at of Rasulullah (sallallahu alayhi wasallam) it is incumbent to follow his Sunnah. only the ignorant believe that Shafaa'at can be obtained without following the Sunnah.
On the Day of Qiyaamah when the Malaaikah will be buffeting away from Haudh-e-Kauthar (the Fountain of Kauthar) many people who will have gathered there to drink of its water, Rasulullah (sallallahu alayhi wasallam) will exclaim: "They are my Ummah!" The Malaaikah will respond: "O Rasulullah! You do not know what they had fabricated after you." Thus they will be driven away from the Fountain of Kauthar.