Anas bin Malik reported,

An Arabi urinated in the mosque, and some of the people got up to stop him. The Messenger of Allah ﷺ said, "Leave him, do not interrupt him." When he had finished, the Prophet ﷺ called for a bucket of water and poured it over the spot.

Muslim 659

Sahih

و حدثنا قتيبة بن سعيد حدثنا حماد وهو ابن زيد عن ثابت

عن أنس

أن أعرابيا بال في المسجد فقام إليه بعض القوم فقال رسول الله ﷺ دعوه ولا تزرموه قال فلما فرغ دعا بدلو من ماء فصبه عليه

مسلم 659صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Purification
Chapter
Obligation of washing urine and other impurities when they occur in the masjid, and that the ground is purified by water without need to dig it up
Numbering
Darussalam 659
Muslim 659