Sahih al-Bukhari 5190

Arabic

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.‏

English translation

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

Reference: Sahih al-Bukhari 5190, Book of Wedlock, Marriage (Nikaah). English translation by Dr. Muhammad Muhsin Khan.