(91) باب رَفْعِ الْبَصَرِ إِلَى الإِمَامِ فِي الصَّلاَةِ
Narrated Abu Ma`mar:
We asked Khabbab whether Allah's Messenger (ﷺ) used to recite (the Qur'an) in the Zuhr and the `Asr prayers. He replied in the affirmative. We said, "How did you come to know about it?" He said, "By the movement of his beard."
Reference: Sahih al-Bukhari 746
In-book reference: Book 10, Hadith 140
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 12, Hadith 713