Abu Hurayra reported that the Prophet, may Allah bless him and grant him peace, said, "When one of you gives someone an invitation and the person you invited comes with your messenger, that is his permission to enter."

عَنِ النَّبِيِّ ﷺ قَالَ إِذَا دُعِيَ أَحَدُكُمْ فَجَاءَ مَعَ الرَّسُولِ فَهُوَ إِذْنُهُ