وحكم الخاص من الكتاب: وجوب العمل به لا محالة
The ruling of a specific expression in the Qur'an is that it must be acted upon.
Where a specific expression clearly denotes its meaning, its established indication is not treated as a matter of personal preference. The text requires compliance with what it determines.
The qualification matters: this discussion concerns the Qur'anic khāṣṣ and what its lexical indication establishes. If another word in the same passage is independently ambiguous, that ambiguity must be examined separately.