Abu Saeed Khudri reported,

The Messenger of Allah ﷺ said, "If a single iron mace were set down upon the earth and all mankind and jinn gathered together to lift it, they could not raise it from the ground."

وعن رسول الله ﷺ قال لو أن مقمعا من حديد وضع في الأرض فاجتمع له الثقلان ما أقلوه من الأرض