According to some scholars a "Mabroor Hajj" (a righteous Hajj) is that pilgrimage during which no evil deed is committed. Therefore a Hajj Mabroor is regarded to be a Maqbool Hajj (an accepted Hajj). By this the scholars mean such a Hajj wherein the Hajee is particular about each and every etiquette of Hajj while at the same time avoiding all faults.
Hazrat Jaabir (RA) narrates Rasulullah (Sallahu alayhi wa sallam) said: " The beauty (righteousness) of Hajj lies in feeding others and speaking to them politely". Another Hadith states: "The virtue of Hajj lies in feeding others and in greeting others frequently". (Targheeb)
It is also reported that when Rasulullah (Sallallahu alayhi wa sallam) announced that Paradise alone shall be the reward for a righteous Hajj, some companions inquired as to what a righteous Hajj actually was. To this Rasulullah (Salallaho Alaihi Wassallam) replied: "To feed others and to greet much". (Kanz)
Adapted from Virtues of Hajj