Build mosques for the sake of Allah ; Put effort into religious duties ; Do good deeds ; Work hard for rewards from God ; Do acts of kindness without expecting anything back .

This hadith is about the reward that one can receive from Allah if they build a mosque for Him. The Prophet Muhammad (peace be upon him) said that whoever builds a mosque for the sake of Allah, even if it is as small as a sparrow's nest, will be rewarded with a house in Paradise. This hadith teaches us to strive to do good deeds and worship Allah by building mosques and other places of worship. It also encourages us to put effort into our religious duties and not take them lightly. Furthermore, it reminds us that we should always strive to do good deeds in order to gain rewards from Allah in this life and the hereafter.