Giving charity on a voluntary basis in the name of Allah (swt) is known as sadaqah (for the cause of Allah). A snile can be charity even.
A voluntary act of kindness toward another being, whether motivated by charity, love, compassion, or faith, is also referred to as sadaqah. These deeds need not be materialistic or costly. Simple gestures of kindness like a smile or a helping hand are regarded as Sadaqah.
There are various ways to contribute sadaqah. Whatever you do to help or care for someone who is less fortunate counts, whether you provide financial Sadaqah online, from your home, in person at the mosque, or by donating tangible commodities like goods or clothing.
The concept of Sadaqah Jariyah, or “ongoing charity,” is crucial to Islam.
Any charitable act that goes beyond providing immediate aid and has a lasting positive impact on a community is referred to as Sadaqah Jariyah. Examples include constructing homes, schools, and hospitals; setting up reliable water systems; converting a piece of land into a farm that will produce crops for years to come; and assisting a low-income family in starting a business that will profit future generations.