CHAPTER: The Age Upon Which A Man Is Entitled (To A Share) Due To Fighting.
Narrated Nafi: That Ibn Umar was presented before the Prophet صلی اللہ علیہ وسلم on the day of Uhud, when he was fourteen years old, but he did not allow him. He was again presented to him on the day of Khandaq (the battle of Trench) when he was fifteen years old, he allowed him.