Chapter 97: Oneness, Uniqueness of Allah (Tawheed)
Narrated Ibn 'Abbas: The Prophet (ﷺ) was hiding himself in Mecca and used to recite the (Qur' an) in a loud voice. When the
pagans heard him they would abuse the Qur' an and the one who brought it, so Allah said to His
Prophet: 'Neither say your prayer aloud, nor say it in a low tone.' ( 17.110)
Sahih al-Bukhari 7547