Sahih Bukhari Volume 2, Book 13, Hadith 950

حَدَّثَنَا أَحْمَدُ، قَالَ حَدَّثَنَا ابْنُ وَهْبٍ، قَالَ أَخْبَرَنَا عَمْرٌو، أَنَّ مُحَمَّدَ بْنَ عَبْدِ الرَّحْمَنِ الأَسَدِيَّ، حَدَّثَهُ عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، قَالَتْ دَخَلَ عَلَىَّ رَسُولُ اللَّهِ صلى الله عليه وسلم وَعِنْدِي جَارِيَتَانِ تُغَنِّيَانِ بِغِنَاءِ بُعَاثَ، فَاضْطَجَعَ عَلَى الْفِرَاشِ وَحَوَّلَ وَجْهَهُ، وَدَخَلَ أَبُو بَكْرٍ فَانْتَهَرَنِي وَقَالَ مِزْمَارَةُ الشَّيْطَانِ عِنْدَ النَّبِيِّ صلى الله عليه وسلم فَأَقْبَلَ عَلَيْهِ رَسُولُ اللَّهِ ـ عَلَيْهِ السَّلاَمُ ـ فَقَالَ ‏"‏ دَعْهُمَا ‏"‏ فَلَمَّا غَفَلَ غَمَزْتُهُمَا فَخَرَجَتَا‏

Narrated By 'Aisha : Allah's Apostle (p.b.u.h) came to my house while two girls were singing beside me the songs of Buath (a story about the war between the two tribes of the Ansar, the Khazraj and the Aus, before Islam). The Prophet (p.b.u.h) lay down and turned his face to the other side. Then Abu Bakr came and spoke to me harshly saying, "Musical instruments of Satan near the Prophet (p.b.u.h) ?" Allah's Apostle (p.b.u.h) turned his face towards him and said, "Leave them." When Abu Bakr became inattentive, I signalled to those girls to go out and they left.