The Prophet (saww) said: "I am leaving for you two precious and weighty Symbols that if you adhere to BOTH of them you shall not go astray after me. They are, the Book of Allah, and my progeny, that is my Ahlulbayt. The Merciful has informed me that These two shall not separate from each other till they come to me by the Pool (of Paradise)."
The Prophet (saww) said: "Behold! My Ahlulbayt are like the Ark of Noah. Whoever embarked in it was SAVED, and whoever turned away from it was PERISHED."