وَأَنْزَلَهُ عَلَى رَسُولِهِ وَحْيًا
He sent it down as revelation to His Messenger.
Muhammad ﷺ is the Messenger who conveys the Qur’an, not its independent author. Revelation explains the means by which the divine message reaches human beings.
The source of revelation is Allah; the Messenger faithfully communicates it.