Hadith 1429
حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، قَالَ قَرَأْتُ عَلَى مَالِكٍ عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " إِذَا دُعِيَ أَحَدُكُمْ إِلَى الْوَلِيمَةِ فَلْيَأْتِهَا " .
Ibn Umar (Allah be pleased with him) reported that Allah's Messenger (ﷺ) said:
When any one of you is invited to a feast, he should attend it.
Reference : Sahih Muslim 1429a
In-book reference : Book 16, Hadith 112
USC-MSA web (English) reference : Book 8, Hadith 3337