«حكمها: يطالب المرء بإحيائها، ويستحق الملامة على تركها، إلا أن يتركها أحياناً أو بعذر»
A person is called to maintain the Sunnah and may deserve blame for abandoning it, apart from occasional omission or a valid excuse.
The author differentiates persistent disregard from an occasional justified omission. Such a Sunnah is not treated as simply interchangeable with every voluntary act, nor is its omission automatically identical to abandoning fard.
The proper grade encourages consistent practice without assigning greater legal force than the evidence establishes.