Zakah is the third pillar of Islam and it refers to the obligatory charity that Muslims are required to pay. The word "Zakah" means purification and growth, and it is considered a way to purify one's wealth and to help those in need. Zakah is an act of worship and it is considered a duty and a responsibility for all Muslims who meet the criteria for payment.

Zakah is calculated based on a specific percentage of a person's wealth and assets, and it is usually set at 2.5%. The payment of Zakah is a way to redistribute wealth and to support the poor and needy, and it is seen as a way to achieve social justice and alleviate poverty. The money collected through Zakah is used to support various causes, such as providing for the basic needs of the poor, building hospitals and schools, and supporting humanitarian and relief efforts.

In addition to the obligatory Zakah, Muslims are also encouraged to give voluntary charity, known as Sadaqah. This can include donations of money, food, clothing, or other resources, and it is seen as a way to earn rewards and blessings from Allah, as well as to help those in need. Overall, Zakah and Sadaqah are important aspects of Islamic teachings, emphasizing the importance of generosity, kindness, and compassion towards others, particularly the less fortunate.