And this is the very disputation referred to in His words,

“None dispute concerning the signs of Allah except those who have disbelieved” (Ghafir: 4).

If, then, the Prophet—may Allah bless him and grant him peace—was arguing with the unbelievers even after the order to fight had been revealed, and if Allah, exalted is He, further instructed him to grant asylum to anyone who seeks his protection until he has heard the word of Allah, and thereafter to convey him to a place of safety,

what is intended by that is the delivery of Allah’s messages and the establishment of proof against the person. That purpose may not be fulfilled unless the revelation is explained to him in a way that renders the proof conclusive and answers any objections. Hence, whatever is indispensable for fulfilling an obligation becomes obligatory in its own right.