The Holy Prophet (pbuh&hp) said:

"The parable of my Ahl Al' Bayt is that of the boat of Noah, whoever gets aboard it is saved and whoever stays away from it is drowned."

Sunni References:

• Al Hakim in his Mustadrak, ii, 343, iii, 150:
• Abu Nuaym in Hilyat al Awliya', iv, 306;
• al Khatib in Ta'rikh Baghdad, xii, 19;
• al Suyuti in al Durr al Manthur (al-Matba`at al Maymaniyyah, Egypt, 1314), under verse 2:58;
• al Muttaqi in Kanz al Ummal, i, 250, vi, 216;
• al Haythami in Majma` al Zawa'id, ix, 167, 168;
• al Muhibb al Tabari in Dhakha'ir al Uqba, 20; al Manawi in Kunuz al?Haqa'iq, 132.