Sahih Bukhari
Penalty of Hunting while on Pilgrimmage
Volume: 003 / Book Number: 029 / Hadith Number: 82
Narrated As-Sa'ib bin Yazid:
(While in the company of my parents) I was made to perform Hajj with Allah's Apostle and I was a seven-year-old boy then. (Fatch-Al-Bari, p.443, Vol.4)