Mukhtasar Bukhari

Narrated by Ummul Momineen Aisha Siddiqa (may Allah be pleased with her): She asked, "O Messenger of Allah! We consider Jihad to be a very great act of worship, so should we not perform Jihad?" The Prophet (peace be upon him) replied, "No! Rather, the best Jihad is an accepted Hajj (Hajj Mabroor)."