الأَمْرُ: فَهُوَ طَلَبُ الْفِعْلِ عَلَى وَجْهِ الِاسْتِعْلَاءِ
An imperative is a request for an action made in a commanding or superior manner.
Ṭalab al-fiʿl identifies the basic objective as performance of an act. Istʿilāʾ describes the authoritative stance of the expression, rather than merely the speaker’s age or social rank.
“اُكْتُبْ دَرْسَكَ” asks for the lesson to be written. Yet a formally imperative expression can, depending on context, become prayer, a request, or guidance. We must distinguish grammatical form from rhetorical intention.