Does the meaning of the Almighty's saying: "Indeed, the Qur'an of dawn is ever witnessed" specifically refer to the recitation [of the Qur'an] during the Fajr prayer, or to the recitation of the Qur'an after the Fajr prayer?

The meaning of "Qur'an of Fajr" in the verse: (Establish prayer at the declining of the sun until the darkness of the night, and the Qur'an of Fajr. Indeed, the Qur'an of Fajr is ever witnessed) refers to the recitation in the Fajr prayer. The prayer is called "Qur'an" because the Qur'an is one of its pillars. The Prophet, peace be upon him, clarified that the angels of the night and day gather during the Fajr prayer, and that the Qur'an of Fajr is witnessed by the angels.