Taking boys on campaign, and those who did not allow them

Hisham narrates from his father that he said: On the day of the Battle of the Camel, Abu Bakr bin Abd al-Rahman and I were sent back; we were considered too young.

Sayyiduna Ibn Umar (may Allah be pleased with them both) said: On the day of the Battle of Uhud I was presented before the Messenger of Allah (peace and blessings be upon him) to take part in jihad. At that time I was fourteen years old. I was considered too young and was sent back. Then on the day of the Battle of the Trench I was presented, and at that time I was fifteen years old, and I was given permission. Nafi' said: I narrated this report to Umar bin Abd al-Aziz when he was caliph, and he said: "This is indeed a limit between the young and the grown." He then wrote to his governors: "Whoever has reached the age of fifteen, assign him to jihad, and whoever is younger than that, assign him among the family and dependants."

Sayyiduna Atiyyah (may Allah be pleased with him) said: On the day of the Battle of Qurayzah we were presented before the Messenger of Allah (peace and blessings be upon him). Whoever had grown (pubic) hair was killed, and whoever had not grown it was not killed. Since I had not grown it, I too was not killed.

Sayyiduna al-Bara (may Allah be pleased with him) said: Sayyiduna Ibn Umar (may Allah be pleased with them both) and I were presented before the Messenger of Allah (peace and blessings be upon him) on the day of the Battle of Badr, and we were considered too young. Then we took part in the Battle of Uhud.