Among the evidences of departing from following the righteous Salaf: distinguishing between ahad reports and mutawatir reports.

The Shaykh : ...And if you want some examples that clarify 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 these people who do not pay attention to knowing what our righteous Salaf were upon, bringing forth statements, ideas, and schools of thought that we are certain are invalid and contrary to the Book and the Sunnah; because they are at odds with 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 reports and mutawatir reports. This distinction is one of the most prominent evidences of their departure from following the righteous Salaf; because they do not know anything called a mutawatir report or an ahad report...