The Messenger of Allah (ﷺ) went to a far-off place in the desert (hidden from the sight of human beings) for relieving himself. Then I brought water for him and he cleansed himself.
Sahih Muslim Book 2, Hadith 88
← Previous Hadith When the Messenger of Allah (ﷺ) entered the privy, a servant and I used to carry a skin of water, and a pointed staff, and he would cleanse himself with water.

Sahih Muslim Book 2, Hadith 87 Next Hadith → Jarir urinated, then performed ablution and wiped over the socks. It was said to him: Do you do like this? He said: Yes, I saw that the Messenger of Allah (ﷺ) urinated, then performed ablution and then wiped over his shoes. A'mash said: Ibrahim had observed that this hadith was a surprise for them (the people) because Jarir had embraced Islam after the revelation of Surat al-Ma'ida.

Sahih Muslim Book 2, Hadith 89