Boasting about mosques is from the signs of the Last Hour
ABUDAWUD 449:
from Anas —
The Prophet ﷺ said: “The Hour will not be established until people boast about (their) mosques.”
أبو داود ٤٤٩:
عن انس —
أَنَّ النَّبِيَّ ﷺ قَالَ: «لاَ تَقُومُ السَّاعَةُ حَتَّى يَتَبَاهَى النَّاسُ فِي الْمَسَاجِدِ»