He said: The Prophet entered the privy and I placed water for him. On coming out he asked who had placed it, and when he was told he said, "0 God, give him insight regarding the religion." Bukhari and Muslim.
Hadith Referenceمشكوة المصابيح / كتاب المناقب / 6148
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 (143) و مسلم (138/ 2477)»