He told that when Abu Humaid, one of the Ansar, brought a vessel of milk to the Prophet from an-Naqi'* the Prophet said, “Why did you not cover it up, even by putting a piece of wood on it?” *A place in the wadi al-'Aqiq where camels which had been given in sadaqa were kept. (Bukhari and Muslim.)
Hadith Referenceمشكوة المصابيح / كتاب الأطعمة / 4299
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 (5605، 6506) و مسلم (2011/95)»