It is reported that ‘Abdullâh b. Al-Hasan used to often sit with Rabî’ah. One day they were revising and studying various practices from the Sunnah when a man in the gathering said, “[But] this is not what is practiced [by the people].” ‘Abdullah said, “So if the ignorant become so numerous that they become the rulers and judges, will they then be a proof over the Sunnah?” Rabî’ah said, “I bear witness that these are the words of the sons of the Prophets.”

Al-Khatîb Al-Baghdâdî, Al-Faqîh wa Al-Mutafaqqih article 384