Sahih Bukhari

Allah's Messenger (ﷺ) was asked, "What is the best deed?" He replied, "Tobelieve in Allah and His Apostle (Muhammad). The questioner thenasked, "What is the next (in goodness)? He replied, "To participate inJihad (religious fighting) in Allah's Cause." The questioner againasked, "What is the next (in goodness)?" He replied, "To perform Hajj(Pilgrim age to Mecca) 'Mubrur, (which is accepted by Allah and isperformed with the intention of seeking Allah's pleasure only and notto show off and without committing a sin and in accordance with thetraditions of the Prophet)."