(212) بَابُ التَّطَاوُلِ فِي الْبُنْيَانِ
Abu Hurayra reported that the Messenger of Allah, may Allah blesshim and grant him peace, said, "The Final Hour will not come until peoplecompete with one another in the height of their buildings."
Reference: Al-Adab Al-Mufrad 449
In-book reference: Book 25, Hadith 8
English translation: Book 25, Hadith 449