Abu Musa said, "The Prophet ﷺ said, "I recognize the voice of the group of Al- Ashariyun, when they recite the Qur'an, when they enter their homes at night, and I recognize their houses by (listening) to their voices when they are reciting the Qur'an at night although I have not seen their houses when they came to them during the day time. Amongst them is Hakim who, on meeting the cavalry or the enemy, used to say to them (i.e. the enemy). My companions order you to wait for them.' "  

قَالَ النَّبِيُّ ﷺ إِنِّي لأَعْرِفُ أَصْوَاتَ رُفْقَةِ الأَشْعَرِيِّينَ بِالْقُرْآنِ حِينَ يَدْخُلُونَ بِاللَّيْلِ وَأَعْرِفُ مَنَازِلَهُمْ مِنْ أَصْوَاتِهِمْ بِالْقُرْآنِ بِاللَّيْلِ وَإِنْ كُنْتُ لَمْ أَرَ مَنَازِلَهُمْ حِينَ نَزَلُوا بِالنَّهَارِ وَمِنْهُمْ حَكِيمٌ إِذَا لَقِيَ الْخَيْلَ أَوْ قَالَ الْعَدُوَّ قَالَ لَهُمْ إِنَّ أَصْحَابِي يَأْمُرُونَكُمْ أَنْ تَنْظُرُوهُمْ  

I recognise the voice of the Ash'arites while they recite the Qur'an as they arrive during the night and I also recognise their station from the recital of the Qur'an during the night time, although I have not seen their encampments as they encamp during the day time. And there is a person amongst them, Hakim; when he encounters the horsemen or the enemies he says to them: My friends command you to wait for them.  

قَالَ رَسُولُ اللَّهِ ﷺ إِنِّي لأَعْرِفُ أَصْوَاتَ رُفْقَةِ الأَشْعَرِيِّينَ بِالْقُرْآنِ حِينَ يَدْخُلُونَ بِاللَّيْلِ وَأَعْرِفُ مَنَازِلَهُمْ مِنْ أَصْوَاتِهِمْ بِالْقُرْآنِ بِاللَّيْلِ وَإِنْ كُنْتُ لَمْ أَرَ مَنَازِلَهُمْ حِينَ نَزَلُوا بِالنَّهَارِ وَمِنْهُمْ حَكِيمٌ إِذَا لَقِيَ الْخَيْلَ أَوْ قَالَ الْعَدُوَّ قَالَ لَهُمْ إِنَّ أَصْحَابِي يَأْمُرُونَكُمْ أَنْ تَنْظُرُوهُمْ