O you who believe! Do not render void your charities by (a show of) obligation and injury, like him who spends his wealth to be seen by people and does not believe in Allâh and the Last Day. So his case is like the case of a smooth rock with some soil thereon, when heavy rain hits it leaves it bare and hard. They shall not be able to gain anything of what they accomplished. And Allâh does not guide such disbelieving people to the way of success.