Sahih Bukhari Volume 4, Book 56, Hadith 2907

حَدَّثَنَا إِسْمَاعِيلُ، قَالَ حَدَّثَنِي ابْنُ وَهْبٍ، قَالَ عَمْرٌو حَدَّثَنِي أَبُو الأَسْوَدِ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ ـ رضى الله عنها ـ دَخَلَ عَلَىَّ رَسُولُ اللَّهِ صلى الله عليه وسلم وَعِنْدِي جَارِيَتَانِ تُغَنِّيَانِ بِغِنَاءِ بُعَاثَ، فَاضْطَجَعَ عَلَى الْفِرَاشِ وَحَوَّلَ وَجْهَهُ، فَدَخَلَ أَبُو بَكْرٍ فَانْتَهَرَنِي وَقَالَ مِزْمَارَةُ الشَّيْطَانِ عِنْدَ رَسُولِ اللَّهِ صلى الله عليه وسلم‏.‏ فَأَقْبَلَ عَلَيْهِ رَسُولُ اللَّهِ صلى الله عليه وسلم فَقَالَ ‏"‏ دَعْهُمَا ‏"‏‏.‏ فَلَمَّا غَفَلَ غَمَزْتُهُمَا فَخَرَجَتَا‏

Narrated By 'Aisha : Allah's Apostle came to my house while two girls were singing beside me the songs of Bu'ath (a story about the war between the two tribes of the Ansar, i.e. Khazraj and Aus, before Islam.) The Prophet reclined on the bed and turned his face to the other side. Abu Bakr came and scolded me and said protestingly, "Instrument of Satan in the presence of Allah's Apostle?" Allah's Apostle turned his face towards him and said, "Leave them." When Abu Bakr became inattentive, I waved the two girls to go away and they left.