Narrated Ibn `Abbas: Once the Prophet entered a lavatory and I placed water for his ablution. He asked, "Who placed it?" He was informed accordingly and so he said, "O Allah! Make him (Ibn `Abbas) a learned scholar in religion (Islam).
Hadith ReferenceSahih Bukhari / The Book of Wudu (Ablution) / Hadith: 143
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة