صَحِيحُ مُسْلِمٍ
Sahih Muslim 1429 i
The Book of Marriage
The command to accept invitations
وَحَدَّثَنِي حَرْمَلَةُ بْنُ يَحْيَى، أَخْبَرَنَا ابْنُ وَهْبٍ، حَدَّثَنِي عُمَرُ بْنُ مُحَمَّدٍ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم قَالَ إِذَا دُعِيتُمْ إِلَى كُرَاعٍ فَأَجِيبُوا .
Ibn Umar (Allah be pleased with them) reported Allah's Messenger (ﷺ) having said: When you are invited to a feast (even though it is) the leg of the sheep, you should accept it.
Sahih Muslim, 1429 iSahihصحيح