The Book of Prayers (Kitab Al-Salat)
Muslim :: Book 4 : Hadith 1941
'A'isha reported: BY Allah, I remember the Messenger of Allah (may peace be upon him) standing on the door of my apartment screening me with his mantle enabling me to see the sport of the Abyssinians as they played with their daggers in the mosque of the Messenger of Allah (may peace be upom him). He (the Holy Prophet) kept standing for my sake till I was satiated and then I went back; and thus you can well imagine how long a girl tender of age who is fond of sports (could have watched it).