Allah's Messenger (ﷺ) said, "The Hour will not be established till the buttocks of the women of the tribe of
Daus move while going round Dhi-al-Khalasa." Dhi-al-Khalasa was the idol of the Daus tribe which
they used to worship in the Pre Islamic Period of ignorance.
Sahih al-Bukhari Book 92, Hadith 63