Sahih al-Bukhari 5173
Sahih al-Bukhari · Book 67: Wedlock, Marriage (Nikaah) · To accept the invitation to a Walima
Narrated `Abdullah bin `Umar:
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ ، أَخْبَرَنَا مَالِكٌ ، عَنْ نَافِعٍ ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ ـ رضى الله عنهما ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " إِذَا دُعِيَ أَحَدُكُمْ إِلَى الْوَلِيمَةِ فَلْيَأْتِهَا " .
Allah's Messenger (ﷺ) said, "If anyone of you is invited to a wedding banquet, he must go for it (accept the invitation)."