(71) باب حَقِّ إِجَابَةِ الْوَلِيمَةِ وَالدَّعْوَةِ
Narrated `Abdullah bin `Umar:
Allah's Messenger (ﷺ) said, "If anyone of you is invited to a wedding banquet, he must go for it (accept the invitation)."
Reference: Sahih al-Bukhari 5173
In-book reference: Book 67, Hadith 108
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 7, Book 62, Hadith 102