He will not defile himself for his father or for his mother, for his brother or for his sister if they die because the separation of his God is on his head.
They shall not go to a dead person to defile themselves. But for father, or for mother, or for son, or for daughter, for brother, or for sister that has had no husband, they may defile themselves.
There were men who were unclean by the dead body of a man, so they could not keep the Passover on that day, and they came before Moses and before Aaron on that day.