Abu Shuraih al-Ka'bi reported God's messenger as saying, "He who believes in God and the last day should honour his guest. Provisions for the road are what will serve for a day and a night; hospitality extends for three days ; what goes beyond that is sadaqa ; and it is not allowable that a guest should stay till he makes himself an encumbrance.'' (Bukhari and Muslim.)
Hadith Referenceمشكوة المصابيح / كتاب الأطعمة / 4244
Hadith Gradingالألبانی:مُتَّفق عَلَيْهِ | زبیر علی زئی:متفق عليه
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «متفق عليه، رواه البخاري (6019) و مسلم (48/14)»