Sayyiduna Jabir (may Allah be pleased with him) said: Abu Shu'ayb (may Allah be pleased with him) had a servant who was a butcher. When Abu Shu'ayb (may Allah be pleased with him) perceived that the Messenger of Allah (peace and blessings be upon him) and the Companions (may Allah be pleased with them) were hungry, he told his servant to send meat. Then he invited the Messenger of Allah (peace and blessings be upon him) to a meal as one of five people. When the Messenger of Allah (peace and blessings be upon him) came with his companions, five in all, a sixth man was with them. When he (peace and blessings be upon him) reached Abu Shu'ayb (may Allah be pleased with him), he said: "You invited five people, but this sixth man has come along with us. If you permit him, he will come in; otherwise he will go back." Abu Shu'ayb (may Allah be pleased with him) said: "I have given him permission; let him come in."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصداق / 14544