A young child was brought to the Messenger of Allah ﷺ, and the child urinated on him. He called for water and poured it over the spot.
أخبرنا قتيبة عن مالك عن هشام بن عروة عن أبيه
أتي رسول الله ﷺ بصبي فبال عليه فدعا بماء فأتبعه إياه
Bukhari, no. 222, transmitted it. See the previous hadith, from Malik's report. Also Muslim, no. 286. See the previous hadith, from Hisham's report, with the same wording. It is also found in Muwatta (Yahya), 1/64, and Kubra, no. 292.