Sunan an-Nasa'i · Hadith 329
The Book of Water - كتاب المياه
أخبرنا قتيبة، قال حدثنا حماد، عن ثابت، عن أنس، أن أعرابيا، بال في المسجد فقام إليه بعض القوم فقال رسول الله صلى الله عليه وسلم " لا تزرموه " . فلما فرغ دعا بدلو من ماء فصبه عليه .
It was narrated from Anas that a Bedouin urinated in the Masjid, and some of the people went after him, but the Messenger of Allah (ﷺ) said: "Do not restrain him." When he had finished he called from a bucket (of water) and poured over it.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).