Sahih Muslim 2036c

What the guest should do if he is accompanied by someone who was not invited by the host; it is recommended for the host to give permission to the one who has accompanied the guest

وَحَدَّثَنِي مُحَمَّدُ بْنُ عَمْرِو بْنِ جَبَلَةَ بْنِ أَبِي رَوَّادٍ حَدَّثَنَا أَبُو الْجَوَّابِ حَدَّثَنَا عَمَّارٌ وَهْوَ ابْنُ رُزَيْقٍ عَنِ الأَعْمَشِ عَنْ أَبِي سُفْيَانَ عَنْ جَابِرٍ