The hadith of the thaqalayn (Arabic: حديث الثقلين, lit. 'saying of the two treasures') refers to a statement, attributed to the Islamic prophetMuhammad, that introduces the Quran, the principal religious text in Islam, and his progeny as the only two sources of divine guidance after his death. Widely reported by both Shia and Sunni authorities, the hadith of the thaqalayn is of particular significance in Twelver Shia, where their Twelve Imams are viewed as the spiritual and political successors of Muhammad.