From Sahih Muslim (Hadith 3524):
Abu Haraira (Allah be pleased with him) reported Allah's Apostle (ﷺ) as saying. The worst kind of food is at the wedding feast from which one who comes is turned away, and he who refuses it is invited, and he who did not accept the invitation disobeyed Allah and His Messenger (ﷺ)
Reference: Muslim 3524