The book's imperative paradigms include more than second-person commands. They also contain third-person and passive requests, typically formed with command-lām:
TypeFormSense
Third-person activeلِيَدْعُLet him call
Third-person passiveلِيُدْعَLet him be called
Second-person activeاُدْعُCall!
Second-person passiveلِتُدْعَLet you be called
First-person activeلِأَدْعُLet me call
لِيَدْعُ directs an action; لِيُدْعَ requests that a recipient be called. Both employ jussive formation.