(2) باب الْمُبَاهَاةِ فِي الْمَسَاجِدِ
It was narrated from Anas that the Prophet (ﷺ) said:
"One of the portents of the Hour will be that people will show off in building Masjids." (ES)
Reference (ES): Sunan an-Nasa'i 689 (ES)
In-book reference (ES): Book 8, Hadith 2 (ES)
English translation (ES): Vol. 1, Book 8, Hadith 690 (ES)