The mosques of Allah shall be maintained only by those who believe in Allah and the Last Day and establish prayer and give zakah and do not fear except Allah - it is expected that those will be of the [rightly] guided. - At-Tawbah 18

Any Muslim who gives a Muslim something to drink when he is thirsty, Allah will give him something to drink from the sealed nectar. - Narrated by Abu Dawud

The companions of the Messenger of Allah, may Allah bless him and grant him peace, said: O Messenger of Allah, what are these sacrifices? He said: The Sunnah of your father Abraham, peace be upon him. They said: What is for us in them, O Messenger of Allah? He said: For every hair a good deed. They said: What about wool, O Messenger of Allah? He said: For every hair of wool a good deed.