It is narrated from Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) supplicated: "O Allah! Provide for the family of Muhammad (peace and blessings be upon him) only as much sustenance as will suffice to maintain the bond between their bodies and souls." Agreed upon. In another narration it is stated: "As much as is sufficient for subsistence" (grant livelihood enough for subsistence).
Hadith Referenceمشكوة المصابيح / كتاب الرقاق / 5164
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 (6460) و مسلم (1055/18)»