Yahya related to me from Malik from Ibn Shihab from Ubaydullah
ibn Abdullah ibn Utba ibn Masud from Umm Qays ibn Mihsan that she
brought a baby boy of hers who was not yet eating food to the
Messenger of Allah, may Allah bless him and grant him peace, and he
sat it in his arms and it urinated on his garment, so the Messenger of
Allah, may Allah bless him and grant him peace, called for some water
and sprinkled over it but did not wash it.
Muwatta Malik Book 2, Hadith 110