Full Sharh — Sahih al-Bukhari 4232
قَالَ أَبُو بُرْدَةَ عَنْ أَبِي مُوسَى، قَالَ النَّبِيُّ صلى الله عليه وسلم " 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 ـ أَوْ قَالَ الْعَدُوَّ ـ قَالَ لَهُمْ إِنَّ أَصْحَابِي يَأْمُرُونَكُمْ أَنْ تَنْظُرُوهُمْ ".
English Translation
Narrated Abu Burda: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
Source
Sahih al-Bukhari(صحيح البخاري)
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
Hadith Number
4232