Wedlock, Marriage (Nikaah)

Bukhari :: Book 7 :: Volume 62 :: Hadith 118

Narrated 'Ursa:

Aisha said, "While the Ethiopians were playing with their small spears, Allah's Apostle 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.