"The Messenger of Allah (ﷺ) said: 'None of you should perform Ghusl in standing water while he is Junub.'"
Sunan an-Nasa'i Book 2, Hadith 7
← Previous Hadith "A Bedouin stood up and urinated in the Masjid, so the people grabbed him. The Messenger of Allah (ﷺ) said to them: 'Leave him alone, and pour a bucket of water over his urine. For you have been sent to make things easy for people, you have not been sent to make things difficult.'"

Sunan an-Nasa'i Book 2, Hadith 6 Next Hadith → "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 seawater?' The Messenger of Allah (ﷺ) said: 'Its water is a means of purification and its dead meat is permissible.'"

Sunan an-Nasa'i Book 2, Hadith 8