Hadith 1039

Muslims has: "When one of you invites his brother, he must respond (i.e. attend), whether it is a wedding or something similar."

وَلِمُسْلِمٍ : { إِذَا دَعَا أَحَدُكُمْ أَخَاهُ , فَلْيُجِبْ; عُرْسًا كَانَ أَوْ نَحْوَهُ } <sup>1</sup>‏ .‏