(30) باب وُجُوبِ غَسْلِ الْبَوْلِ وَغَيْرِهِ مِنَ النَّجَاسَاتِ إِذَا حَصُلَتْ فِي الْمَسْجِدِ وَأَنَّ الأَرْضَ تَطْهُرُ بِالْمَاءِ مِنْ غَيْرِ حَاجَةٍ إِلَى حَفْرِهَا
Anas reported:
A Bedouin urinated in the mosque. Some of the persons stood up (to reprimand him or to check him from doing so), but the Messenger of Allah (ﷺ) said: Leave him alone; don't interrupt him. He (the narrator) said: And when he had finished, he called for a bucket of water and poured it over. (JA)
Reference (JA): Sahih Muslim 284a (JA)
In-book reference (JA): Book 2, Hadith 125 (JA)
USC-MSA web (English) reference(deprecated numbering scheme): Book 2, Hadith 557 (JA)