Formula For Success
Malik bin Anas (Rahimahullah) reports that a saying of Rasoolullah (Sallallahu 'alayhi wa sallam) had reached him in which he said: I have left with you two things; and you shall never go astray as long as you hold fast to them; the Book of Allah and the Sunnah(way of life) of His Prophet(peace be upon him).
[Hadith-Muwatta Imaam maalik]