Is it permissible for a man to wash his infant daughter, including touching and seeing her female organs, and does the ruling differ if she reaches four or five years of age?

There is no harm in a father looking at the private parts of his young daughter under seven years of age and cleaning her from impurities, as there is no ruling for the private parts of a child before the age of discernment. It is permissible to look at them and touch them, with the exception of the two private parts according to some jurists. However, this exception does not include the mother and those who undertake the child's care and upbringing for the purpose of purification and cleaning.