An example of that is when the Prophet of Allah, sallallaahu ‘alayhi wa sallam, prohibited that they be excluded and not invited to banquets
Abu Hurayrah said
“The worst food is that of a wedding banquet, when the rich are invited to it, and the poor are not. Whoever does not accept (to a wedding banquet) the invitation has disobeyed Allah and His Messenger.”
An-Nawawi said: “The meaning of this narration is to inform what the people will do after the time of the Prophet of Allah, sallallaahu ‘alayhi wa sallam, which is, to cater to the rich during wedding banquets, specifically invite them,preferring them with good foods, lifting their seating arrangements, putting them forward, and other things that are prevalent during banquets.”
Thus, if you are invited to a wedding banquet, then no doubt you should honor that invite, as long as there are no religiously prohibited actions occurring during that banquet. However, and to our great regret,we find that only the rich are invited to banquets, only those who are not in need of food. In contrast, the poor, who are in dire need of a good meal to do away with their fatigue, are ignored.
So the one who is arranging the banquet should not forget the poor; the poor should have a share of your banquet.