Sahih Bukhari

Narrated Abu Sa`id Al-Khudri:The Prophet (ﷺ) said ""The people will continue performing the Hajj and `Umra to the Ka`ba even after the appearance of Gog and Magog."" Narrated Shu`ba extra: The Hour (Day of Judgment) will not be established till the Hajj (to the Ka`ba) is abandoned