Arabic (Original)
حَدَّثَنَا أَبُو مُعَاوِيَةَ حَدَّثَنَا الْأَعْمَشُ عَنْ عُمَارَةَ بْنِ عُمَيْرٍ عَنْ أَبِي مَعْمَرٍ قَالَ قُلْنَا لِخَبَّابٍ هَلْ كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقْرَأُ فِي الظُّهْرِ وَالْعَصْرِ قَالَ نَعَمْ قَالَ قُلْنَا فَبِأَيِّ شَيْءٍ كُنْتُمْ تَعْرِفُونَ ذَلِكَ قَالَ فَقَالَ بِاضْطِرَابِ لِحْيَتِهِ.
English Translation
Abu Mu'awiyah told us, al-A'mash told us, from 'Umarah ibn 'Umayr, from Abu Ma'mar, who said: We said to Khabbab: "Did the Messenger of Allah, peace and blessings be upon him, recite in the noon and afternoon prayers?" He said: "Yes." We said: "By what did you know that?" He said: "By the movement of his beard."