Sunnahs of the Prophet are fixed
Building mosques
On the authority of Othman bin Affan, may God be pleased with him
He said when people said about him when we built the mosque of the Messenger of God, may God bless him and grant him peace
You have increased
And I heard the Prophet, may God bless him and grant him peace, saying
Who built a mosque?
Bakir said
I thought he said
He seeks the face of God
God built us for him like him in Paradise
Agreed