عَنْ أَبِي الْأَحْوَصِ عَنْ بَعْضِ أَصْحَابِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ قَالَ: كَانَتْ تُعْرَفُ قِرَاءَةُ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ فِي الظُّهْرِ بِتَحْرِيكِ لِحْيَتِهِ
A companion of the Messenger narrates: In the Zuhr prayer, the recitation of the Holy Prophet (peace and blessings be upon him) was recognized by the movement of his beard.