The Messenger of Allah ﷺ said, "At the end of time, the man with two thin legs will appear at the Kaabah." I think he said, "and he will demolish it."
حدثنا عبد الرازق حدثنا معمر عن الزهري عن ابن المسيب
قال رسول الله ﷺ في آخر الزمان يظهر ذو السويقتين على الكعبة قال حسبت أنه قال فيهدمها
No references are available.
Its isnad is sahih, and Bukhari (3:368 Fath) and Muslim (2:369) narrated it through routes from Zuhri, with a similar wording. See also 7897, 9394, and see also what has preceded in the Musnad of Abdullah bin Amr bin As, 7053.