What is the force of “ʿalā wajh al-istiʿlāʾ” in defining a command?

Inshāʾ: Requestive and Non-requestive Forms, Imperative Constructions and Rhetorical Functions

• The request is made in a commanding, superior manner
• The speaker must stand at a higher physical location
• The verb must be in the perfect tense
• The addressee must always be singular masculine