What did my sister’s dream about Rukhsar mean?

My sister saw one woman of her colony who was a nurse during her lifetime, but now she is no more, my sister asked her about my brother’s problem that my brother is not having any child. So she said that his wife is being under black magic when she was a child with age of 10-12, she cannot deliver a baby. What is the interpretation of this dream of my sister? My brother’s wife name is Rukhsar.