Allamah Shibli Nomani narrates that one night he saw
one of his friends in his dream. He replied that I bore
many difficulties, especially at the time of questioning
in the grave when I was unable to reply to the questions
of Nakeer and Munkar. They were displeased and
questioned me again but in a state of anger. At that
moment, a handsome youth came forward and helped
me to reply to their questions. When I completed my
responses I asked the handsome youth who he was? He
replied, I am that creation of Allah who was created by
the salawaat which you recited in the world. Allah has
ordered me to assist you whenever you are in any sort
of difficulty.
Ref : Fazila e Salawaat