Abu Huraira reported God’s messenger as saying, "He who believes in God and the last day should honour his guest; he who believes in God and the last day should not annoy his neighbour ; and he who believes in God and the last day should say what is good, or keep silent." In a version instead of speaking of the neighbour he said, "He who believes in God and the last day should join ties of relationship." (Bukhari and Muslim.)
Hadith Referenceمشكوة المصابيح / كتاب الأطعمة / 4243
Hadith Gradingالألبانی:مُتَّفَقٌ عَلَيْهِ | زبیر علی زئی:متفق عليه
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «متفق عليه، رواه البخاري (6018، و الرواية الثانية: 6138) و مسلم (47/75)»