Muwatta Malik 1141

Arabic

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏ "‏ إِذَا دُعِيَ أَحَدُكُمْ إِلَى وَلِيمَةٍ فَلْيَأْتِهَا ‏"‏ ‏.‏

Translation

Yahya related to me from Malik from Nafi from Abdullah ibn Umar that the Messenger of Allah, may Allah bless him and grant him peace, said, "When you are invited to a wedding feast, you must go to it

Authenticity

Sahih · Salim al-Hilali

Reference