Which islamic pillar of faith requires muslims to donate money to charity? shahadah, zakat, sawm, hajj

   Zakat

Explanation:  The charity represents one of the five pillars of Islam, and more specifically the third pillar by which all Muslims who are able to commit themselves to give a part of their wealth for charitable purposes - Zakat. The part that Muslims give from their wealth is called a mustahik for purposes of zakat.

According to Islam, all the wealth that people receive is from God, and as such it is transient, and the believers constantly remind themselves that they do not possess anything; all they have received is not only for them but for everyone.