Mentioning some examples of those who turned away from the methodology of the Salaf, including the distinction between ahad and mutawatir hadiths.

The Shaykh : And if you wish for some examples that clarify for you the difference between those who adopt this Salafi methodology as their path and those who turn away from this methodology to follow the Khalaf, claiming that they are more knowledgeable and more wise, we say, by way of example, you will find that those who do not pay attention to knowing what our righteous Salaf were upon come with sayings, ideas, and schools of thought whose invalidity and contradiction of the Book and the Sunnah we are certain of, because they are contrary to what the Prophet (peace and blessings be upon him), the Companions, and those who followed them in excellence were upon.
One of the clearest examples of this, which some people in the present age frequently mention, is their distinction between ahad hadiths and mutawatir hadiths.
This distinction is one of the most prominent proofs of their departure from following the righteous Salaf, because they do not know anything called a mutawatir hadith or an ahad hadith...