Mukhtasar Bukhari (Abridged) 68 — At what age can a boy hear hadith?

Narrated Abdullah bin Abbas (may Allah be pleased with them) said: I once rode a donkey and at that time I was close to puberty, and the Messenger of Allah (peace and blessings of Allah be upon him) was offering prayer at Mina without any wall (sutrah) in front of him. I passed in front of part of the row and let the donkey loose so that it could graze, and I joined the row. No one stopped me from doing this.