What did king acrisius receive telling him that his grandson would kill him?

King Acrisius received a prophecy from the Oracle of Delphi, which foretold that his daughter, Danaë, would bear a son who would eventually kill him. In fear of this prophecy, Acrisius locked Danaë away in a bronze chamber to prevent her from having children. Despite his efforts, Zeus visited her in the form of golden rain, resulting in the birth of Perseus, who later fulfilled the prophecy.