"It was said, 'O Allah's Messenger! Shall we use the water of Buda'ah well to perform ablution while it is a well in which menstruation rags, flesh of dogs and the putrid are dumped?" Allah's Messenger said: 'Indeed water is pure, nothing makes it impure.'"
Jami` at-Tirmidhi Book 1, Hadith 66
← Previous Hadith "One of the wives of the Prophet performed Ghusl with a bowl. Allah's Messenger wanted to perform Wudu with it, so she said: 'O Messenger of Allah! Indeed I am ]unub.' So he said: 'Indeed, water does not become Junub.'"

Jami` at-Tirmidhi Book 1, Hadith 65 Next Hadith → "I heard AlIah's Messenger while he was being asked about water in open areas of the land, and predators and beasts come to it." He said: 'So Allah's Messenger said: 'When the water is two Qullah it does not carry filth.'"

Jami` at-Tirmidhi Book 1, Hadith 67