Sunan an-Nasa'i — The Book of Purification — Hadith No: 221

It was narrated from Al-Muhajir bin Qunfudh that he greeted the Prophet (ﷺ) with Salam while he was urinating, and he did not return the greeting until he had performed Wudu'. When he had performed Wudu' he returned the greeting

Anas bin Malik said:"When the Messenger of Allah (ﷺ) would go to the toilet, I and another boy like me would bring a small leather vessel of water and he would clean himself with water

Ibrahim bin Jarir narrated that his father said:"I was with the Prophet (ﷺ) and he went to Al Khala' (toilet) and relieved himself, then he said: "O Jarir, bring Tahur (a means of purification)." So I brought him some water and he performed Intinja' with water, and did like this with hand, rubbing it on the ground. Abu 'Abdur-Rahman (An-Nasa'i) said: "This resembles more with what is correct than the (previous) narration of Sharik, and Allah knows best

Abu Hurairah said:"A man asked the Prophet (ﷺ): 'O Messenger of Allah, we travel by sea and we take a little water with us, but if we use it for Wudu', we will go thirsty. Can we perform Wudu', with sea-water?' The Messenger of Allah (ﷺ) said: 'Its water is a means of purification and its dead meat is permissible