Prophet Muhammad (PBUH&HP) says:
Look into what womb you are going to put your child in, as indeed bloodis effective.
There is no better milk for a child than the milk of his mother
Allah will write a reward for he who kisses his child
Maintain justice among your children in gifts
whoever has a child should act childishly to him
when your children reach the age of seven make them sleep in separate beds
A child is a master for seven years, a slave for next seven years and a minister for another seven years