What is the ruling of the Shari'ah on a father who asks his 24-year-old daughter to massage him for an hour and to sleep with him in his bed when his second wife is absent, knowing that the girl's mother died when she was four years old and she was raised by her father?

It is permissible for a woman to massage her mahram (e.g., her father) if the massage is free from forbidden elements, such as looking at or touching the body's awrah (private parts), and if she does not predominantly suspect any impropriety. However, avoiding this altogether is more preferable. If there is any suspicion of impropriety or a forbidden matter, then it is not permissible for her to massage him or to be alone with him; rather, she should treat him as a non-mahram.