From Sahih Bukhari (Hadith 7116):
Narrated Abu Huraira: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
Reference: Bukhari 7116