Ibn ‘Umar said that when God’s messenger was asked about water in desert country and what is frequented by animals and wild beasts, he replied, “When there is enough water to fill two pitchers it bears no impurity.”
Ahmad, Abu Dawud, Tirmidhi, Nasa'i, Darimi and Ibn Majah transmitted it. Another version by Abu Dawud has, “It does not become unclean.”
My maternal aunt took me to the Prophet and said, “My nephew is ill.” So he wiped my head, invoked a blessing on me, then performed ablution, and I drank some of the water he had used. Then I stood up behind his back and looked at the seal of prophecy between his shoulders, like the button on a bride’s pavilion.
Abu Sa'id al-Khudri said that some people asked God’s messenger whether they might perform ablution out of the well of Buda‘a, which was a well into which menstrual cloths, dead dogs and stinking things were thrown, and he replied, “Water is pure and is not defiled by anything.”
Ahmad, Tirmidhi, Abu Dawud and Nasa’i transmitted it.