«كالآيات المؤولة والصحيح من أخبار الآحاد، كصلاة الوتر والعيدين»
Examples include verses requiring interpretation and sound solitary reports, such as the witr and two Eid prayers.
The book cites witr and Eid prayer as wajib in the Hanafi classification. Other juristic schools assign different statuses to some of these prayers, and that school-specific context should be retained.
An interpretive element in a verse or the evidentiary status of a sound solitary report does not make the resulting obligation optional.