Hadith

Narrated Ibn Abbas: The Prophet used to move his tongue when the divine Inspiration was being revealed to him. (Sufyan, a subnarrator, demonstrated (how the Prophet used to move his lips) and added. "In order to memorize it." So Allah revealed: "Move not your tongue concerning (the Quran) to make haste therewith." (75.16)

Vol: 006 Book: 060 Hadith: 449