Yahya bin 'Ammara يحيى بن عمارة بن أبي حسن الأنصاري · The Book On The Mosques And The Congregations

"I heard the Messenger of Allah say: 'Whoever builds a mosque in which the Name of Allah is mentioned, Allah will build a house for him in Paradise.'"

The Messenger of Allah said: "When the Iqamah is called for the prayer, do not come running. Come walking with tranquility. Whatever you catch up with, pray, and whatever you miss, complete it."