"A Bedouin urinated in the Masjid, and the Prophet (ﷺ) ordered that a bucket (be brought) and poured over it."
Sunan an-Nasa'i Book 1, Hadith 54
← Previous Hadith "Leave him and do not restrain him." When he had finished he called for a bucket (of water) and poured it over it.

Abu 'Abdur-Rahman (An-Nasa'i) said: "Meaning: 'Do not interrupt him.'"

The author will cite this narration again in No. 330 as a possible proof for setting the minimum, since it mentions "a bucket" as if this is the minium amount required.

Sunan an-Nasa'i Book 1, Hadith 53 Next Hadith → "A Bedouin came to the Masjid and urinated, and the people yelled at him, but the Messenger of Allah (ﷺ) said: 'Leave him alone.' So they left him alone. When he had finished urinating, he ordered that a bucket (be brought) and poured over it."

Sunan an-Nasa'i Book 1, Hadith 55