Is the principle of "the necessity of following the methodology of the Salaf" considered one of the fundamental tenets of Ahlus-Sunnah wal-Jama'ah?

Following the methodology of the Salaf is one of the fundamental principles of Ahlus-Sunnah, and all their principles trace back to it. It is the true methodology that must be followed.

Knowing the creed of the religion and what Allah has enjoined upon His servants, such as understanding His Oneness and Attributes, and believing in His messengers with evidence and certainty, is among the most obligatory matters. Among the greatest sources for this are the Book of Allah, then the sayings of the Messenger of Allah, peace and blessings be upon him, and his companions, and then what the righteous Salaf have agreed upon.

Whoever adopts this methodology will be secure in his religion, and whoever turns away from it will tread the path of misguidance.