There is nothing wrong with this kind of social gathering; such as inviting pilgrims to dinner after hajj, rather, it would be a chance to educate people about the merits and lessons of Hajj. Dr. Salah Sultan, president of the American Center for Islamic Research, Columbus, Ohio stated,

This is a very nice social activity that can help kindle people’s desire to perform Hajj and make the people who are returning from Hajj feel the spirit of brotherhood with their fellow Muslims. Therefore, it is not an act of worship that we should look at from the point of whether it was done at the time of Prophet Muhammad (peace and blessings be upon him) or not. It is merely a social gathering that could help unite our hearts and so it should be encouraged rather than discouraged.