What was the story that the sergeant major told the whites in the monkey's paw?

In "The Monkey's Paw" by W.W. Jacobs, the sergeant major tells the Whites about the paw's dark history and its ability to grant three wishes. He warns them that the wishes come with unforeseen consequences, as he himself experienced tragedy after using it. His story serves as a cautionary tale about tampering with fate and the dangers of greed and desire. The ominous tone of his warning foreshadows the tragic events that follow when the Whites disregard his advice.