Hazrat Ata says that if the child eats food, his urine should be washed, and if he does not eat food, water should be sprinkled on his urine.

Hazrat Aamir says that water should be poured over the urine of a child.

Hazrat Ibn Jurayj says that I asked Hazrat Ata, "If a child does not eat food, should you wash your clothes if he urinates or defecates on them?" He replied, "Sprinkle water on it or pour water over it." I asked, "Before a child starts eating food, he is given ghee or honey to taste; is this considered food?" He replied, "In that case, wash it or sprinkle water on it."

Ibn Shihab states that the ruling of the Shariah has always been that water should be sprinkled over the urine of a child who does not eat food, and the urine of a child who eats food should be washed.