The Prophet got up during the night and went to the toilet and relieved himself, then he washed his face and hands, and went back to sleep. (Sahih) Another chain with similar wording.
The Prophet was asked about the water basins located between Makkah and Al-Madinah, which were visited by wild animals, dogs and donkeys, and about using them for means of purification. He said: “Whatever they (the animals) have carried in their bellies is for them, and whatever is left over is for us, and is pure.”
The Messenger of Allah (ﷺ) said: “A group of my Ummah will continue to prevail and they will never be harmed by those who forsake them, until the Hour begins.”