A bedouin prayed with the Prophet (ﷺ). He then narrated the tradition (No 0380) about urinating of that bedouin.

This version adds: The Prophet (ﷺ) said: Remove the earth where he urinated and throw it away and pour water upon the place.

Abu Dawud said: This is a mursal tradition (i.e. the narrator quotes the Prophet (ﷺ) directly, although he did not see him). Ibn Ma'qil did not see the Prophet (ﷺ).
Sunan Abi Dawud Book 1, Hadith 381
← Previous Hadith A bedouin entered the mosque while the Messenger of Allah (ﷺ) was sitting. He offered two rak'ahs of prayer, according to the version of Ibn 'Abdah. He then said: O Allah, have mercy on me and on Muhammad and do not have mercy on anyone along with us. The Prophet (ﷺ) said: You have narrowed down (a thing) that was broader. After a short while he passed a water in the corner of the mosque. The people rushed towards him. The Prophet (ﷺ) prevented them and said: You have been sent to facilitate and not create difficulties. Pour a bucket of water upon it.

Sunan Abi Dawud Book 1, Hadith 380 Next Hadith → I used to sleep in the mosque in the lifetime of the Messenger of Allah (ﷺ) when I was young and bachelor. The dogs would urinate frequently visit the mosque, and no one would sprinkle over it.

Sunan Abi Dawud Book 1, Hadith 382