Hadith 54
Chapter 45: Leaving Any Restriction On The Amount Of Water - كتاب الطهارة
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 54
In-book reference : Book 1, Hadith 54