´It was narrated that Umm Qais bint Mihsan said:` "I came to the Messenger of Allah with a son of mine who was not yet eating solid food, and he (the baby) urinated on him. He called for water and sprinkled it over (the urine)."
Hadith ReferenceSunan Ibn Majah / The Book of Purification and its Sunnah / Hadith: 524
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:بخاري ومسلم