What is the ruling on an inherited amulet that one sister claims her mother gave her to prevent her husband from marrying, and are recurring dreams in which the mother appears disheveled or in darkness connected to it?

The amulets intended to make a wife beloved to her husband and prevent him from marrying another are considered forbidden "tiwala," and the Prophet, peace and blessings be upon him, deemed them shirk (polytheism). "Tiwala" is a type of magic that makes a woman beloved to her husband, and it can lead to shirk. This amulet must be disposed of by destroying it, by burning it or similar means. There is nothing that definitively links this to the dreams mentioned.