Sahih Bukhari Volume 9, Book 88, Hadith Number 232.

Narrated By Abu Huraira : Allah’s Apostle 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.