Sahih al-Bukhari 222
صحيح البخاري#222SahihNarrated `Aisha:(the mother of faithful believers) A child was brought to Allah's Messenger (ﷺ) and it urinated on the garment of the Prophet. The Prophet (ﷺ) asked for water and poured it over the soiled place
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 4:88