Abu Hurairah (May Allah be pleased with him) reported:
The Prophet ﷺ said, "The worst food is the food of the marriage banquet from which those are left out who would like to come; and to which those are invited who refuse to come. He who rejects an invitation disobeys Allah and His Messenger".

[Muslim].

In another narration Messenger of Allah ﷺ said, "The worst food is the food of the marriage banquet to which the rich are invited and from which the poor are left out".

[Muslim].

وعنه عن النبي ﷺ قال: " شر الطعام طعام الوليمة، يمنعها من يأتيها، ويدعى إليها من يأباها، ومن لم يجب الدعوة فقد عصى الله ورسوله" ((متفق عليه)). وفي رواية في " الصحيحين" عن أبي هريرة من قوله: " بئس الطعام طعام الوليمة يدعى إليها الأغنياء ويترك الفقراء".