The Messenger of Allah ﷺ said, "The Hour will not come until people compete with one another in constructing tall buildings."
حدثنا علي أخبرنا ورقاء عن أبي الزناد عن الأعرج
قال رسول الله ﷺ لا تقوم الساعة حتى يتطاول الناس بالبنيان
Its isnad is sahih, and it is part of a longer hadith found in Bukhari, in the Book of Tribulations, 13/81, no. 7121, Fath, and Muslim, 1/39, no. 9.