Narrated Ibn 'Abbas (radiallaahu 'anhuma) : Once I was behind the Prophet (sallallaahu'alaihi wa sallaam) and he said:
"O boy, I will teach you a few words:
a) Be loyal and obedient to Allaah [worship Him (Alone)], remember Him always, obey His Orders. He will save you from every evil and will take care of you in all the spheres of life.
b) Be loyal and obedient to Allaah, you will find Him near (in front of you), i.e. He will respond your requests.
c) If you ask, ask Allaah.
d) If you seek help, seek help from Allaah.
e) Know that if all the people get together in order to benefit you with something, they will not be able to benefit you in anything except what Allaah has decreed for you. And if they all get together in order to harm you with something, they will not be able to harm you in anything except what Allaah has decreed for you. The pens have stopped writing [Divine (Allaah's) Preordainment]. And (the ink over) the papers (Book of Decrees) have dried." (Hadeeth is quoted from Sahih At-Tirmidhi)