The Way for Father or Parental Grandfather Become Mahram with a Woman
Issue No. 2076- In order for a man or his father to become maḥram with a woman, he can contract the marriage of his minor male child with that woman provided that the period of the marriage is long enough [for the boy] which includes the age he is able to derive sexual pleasure. He can also contract the marriage of his minor female child with a man to make relatives maḥram to him with the same condition, provided that in both cases the marriage should, as an obligatory precaution, have some benefits for the minor and should entail no harm or corruption.
