I asked Khabbab whether the Prophet (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 that?" He said, "From the movement of his beard."
Sahih al-Bukhari Book 10, Hadith 154
← Previous Hadith My father said, "The Prophet (ﷺ) in Zuhr prayers used to recite Al-Fatiha along with two other Suras in the first two rak`at: a long one in the first rak`a and a shorter (Sura) in the second, and at times the verses were audible. In the `Asr prayer the Prophet (ﷺ) used to recite Al-Fatiha and two more Suras in the first two rak`at and used to prolong the first rak`a. And he used to prolong the first rak`a of the Fajr prayer and shorten the second.

Sahih al-Bukhari Book 10, Hadith 153 Next Hadith → I asked Khabbab bin Al-Art whether the Prophet (ﷺ) used to recite the Qur'an in the Zuhr and the `Asr prayers. He replied in the affirmative. I said, "How did you come to know that?" He replied, "From the movement of his beard."

Sahih al-Bukhari Book 10, Hadith 155