Why is “فَاكْتُبُوهُ” in the debt context an example of irshād?

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

• Because it makes the audience unable to comply
• Because it denies the debt
• Because it is a past-tense report
• Because it guides parties to record their rights and prevent disputes