والحال هو الأمر الداعي
The hal is the factor that calls for a particular mode of expression.
Hal here does not simply mean the time of day, weather or physical location. It refers to a relevant condition or consideration affecting expression—for example, whether the addressee denies or already knows a claim.
Example: The hearer rejects a proposition. That denial is the hal. It calls for a more emphatic mode of stating the proposition; the speaker's choice is motivated by the listener's attitude.