Sunan Abi Da’ud – Hadith No : 2957

Narrated Nafi’: That Ibn ‘Umar was presented before the Prophet (ﷺ) 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.

Hadith In Arabic Text :

حدثنا أحمد بن حنبل، حدثنا يحيى، عن عبيد الله، أخبرني نافع، عن ابن عمر، أن النبي صلى الله عليه وسلم عرضه يوم أحد وهو ابن أربع عشرة فلم يجزه وعرضه يوم الخندق وهو ابن خمس عشرة سنة فأجازه ‏.‏

Chapter : Tribute, Spoils, and Rulership (Kitab Al-Kharaj, Wal-Fai’ Wal-Imarah) – كتاب الخراج والإمارة والفىء