Narrated Um Qais bint Mihsin: I brought my young son, who had not started eating (ordinary food) to Allah's Apostle who took him and made him sit in his lap. The child urinated on the garment of the Prophet, so he asked for water and poured it over the soiled (area) and did not wash it.

Narrated `Aisha: (the mother of faithful believers) A child was brought to Allah's Apostle and it urinated on the garment of the Prophet. The Prophet asked for water and poured it over the soiled place.

Once I went to Allah's Apostle with a son of mine who would not eat any food, and the boy passed urine on him whereupon he asked for some water and sprinkled it over the place of urine.

Narrated `Aisha: The Prophet took a child in his lap for Tahnik (i.e. he chewed a date in his mouth and put its juice in the mouth of the child). The child urinated on him, so he asked for water and poured it over the place of the urine.