والسنة: عبارة عن الطريقة المسلوكة المرضية في باب الدين
Sunnah denotes an approved and established way in religious practice.
Both established practice and religious approval matter. A person's isolated act does not automatically acquire this technical classification; its character as an approved religious way must be considered.
Here Sunnah is being discussed as a category of normative legal ruling. In hadith studies and other branches of legal theory, “Sunnah” can have a broader scope. The meaning of the term depends on the disciplinary context.