Sayyiduna Abdullah bin al-Zubayr (may Allah be pleased with them both) narrates this saying of the Prophet (peace and blessings be upon him): "The example of my Ahl al-Bayt is like the ark of Sayyiduna Nuh (peace be upon him): whoever boarded it remained safe, and whoever abandoned it drowned."
Al-Bazzar recorded it; its chain contains a narrator, Ibn Lahi'ah, who is layyin (soft, i.e. weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب المناقب / 14980