Narrated by:'Urwa
Narrated 'Urwa:Aisha said, "While the Ethiopians were playing with their small spears, Allah's Messenger (ﷺ) screened me behind him and I watched (that display) and kept on watching till I left on my own." So you may estimate of what age a little girl may listen to amusement.
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ، حَدَّثَنَا هِشَامٌ، أَخْبَرَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، قَالَتْ كَانَ الْحَبَشُ يَلْعَبُونَ بِحِرَابِهِمْ، فَسَتَرَنِي رَسُولُ اللَّهِ صلى الله عليه وسلم وَأَنَا أَنْظُرُ، فَمَا زِلْتُ أَنْظُرُ حَتَّى كُنْتُ أَنَا أَنْصَرِفُ فَاقْدُرُوا قَدْرَ الْجَارِيَةِ الْحَدِيثَةِ السِّنِّ تَسْمَعُ اللَّهْوَ.
Bukhari
Wedlock, Marriage (Nikaah) • Hadith 124