The Book of Purification
1/45. Chapter:
Leaving Any Restriction On The Amount Of Water
Sunan an-Nasai
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا عَبِيدَةُ، عَنْ يَحْيَى بْنِ سَعِيدٍ، عَنْ أَنَسٍ، قَالَ بَالَ أَعْرَابِيٌّ فِي الْمَسْجِدِ فَأَمَرَ النَّبِيُّ صلى الله عليه وسلم بِدَلْوٍ مِنْ مَاءٍ فَصُبَّ عَلَيْهِ .
It was narrated that Anas bin Malik said: "A Bedouin urinated in the Masjid, and the Prophet (ﷺ) ordered that a bucket (be brought) and poured over it."
Reference : Sunan an-Nasa'i 54In-book reference : Book 1, Hadith 54English translation : Vol. 1, Book 1, Hadith 54