Nasihah or Advice

Assalamu'alaikum !

On the authority of Tamim Al-Dari that the Prophet, sallallahu 'alayhi wasallam, said:

"Religion is nasihah." We said: "To whom?" The Prophet, sallallahu 'alayhi wasallam, said: "To Allah and His Book, and His messenger, and to the leaders of the Muslims and their common folk."

[Muslim]