The rites of Hajj and Umrah according to the authentic Sunnah.

Al-Haafidh Ibn Hajar said: From Abee Hurayrah (radiyallaahu 'anhu) that the Messenger of Allaah (Sallallaahu 'Alayhi Wa Sallam) said: An Umrah to an Umrah is an expiation for what is between the two. And a blessed Hajj does not have a reward for it except paradise. [Agreed Upon. Bulooghul Maraam (no. 693)]

Shaykh Safee'ur Rahmaan Al Mubaarakfooree says: Hajj: In the language, it is an endeavor.

Al Khaleel said: Most endeavors are to glorification. In Islaamic law: The endeavor to the Sacred House with specified actions. It is a pillar from the five pillars of Islaam by agreement. It was first obligated in the sixth year according to the majority, and it has been said that it may have been in the seventh or tenth year. And Ibnul Qayyim has chosen that in Al Hudaa. [It'haaful Karaam (p. 198)]