The river beneath the mosque

I saw all the people gathered in a field in front of the mosque, like they're waiting forsomething.
then there is someone who comes over and tells the story of a river which flowed under the mosque.
Talked about how the river was happening.

tiba2 they come, and try to fool us all.
by providing a tool that weird face.
they almost succeeded,
someone who seems to have been wanting to drop us.
they laughed.