Life and Teachings of the Prophet Muhammad
        
        
          10. The Concept of Social Welfare in Islam
        
        
          ~ 129 ~
        
        
          also be additional almsgiving on a voluntary basis. This is referred
        
        
          to in Islamic literature as
        
        
          sadaqat
        
        
          -
        
        
          al
        
        
          -
        
        
          tatawwu
        
        
          (the alms of
        
        
          spontaneity). The only difference between
        
        
          sadaqah
        
        
          and
        
        
          zakah
        
        
          is
        
        
          that the former is voluntary, while the latter is obligatory, and
        
        
          collected by the government as a compulsory levy. The rate and
        
        
          exemption limit (
        
        
          Nisab
        
        
          ) for
        
        
          zakah
        
        
          are fixed, while the amount of
        
        
          other
        
        
          sadaqah
        
        
          is entirely dependent upon the will of the giver. The
        
        
          term
        
        
          sadaqah
        
        
          , as applied to alms, is an indication of the sincerity
        
        
          (
        
        
          sidk
        
        
          ) of the almsgiver’s religious belief.
        
        
          The term
        
        
          sadaqah
        
        
          is also in certain cases used in a very broad
        
        
          sense to cover all kinds of charity, and should be interpreted
        
        
          according to the context. From the root
        
        
          sadaqah
        
        
          , “to speak the
        
        
          truth, to be true”, it literally means righteousness. Ibn Arabi
        
        
          explains it as a “voluntary act of worship, a choice made by one’s
        
        
          own free will. If this is not the case, then it is not voluntary
        
        
          sadaqah
        
        
          . For man makes it obligatory upon himself as God makes
        
        
          mercy obligatory upon Himself towards those who repent.”
        
        
          The scope of charity as defined in the Qur’an is so vast that even
        
        
          a poor person who has nothing tangible to give can offer
        
        
          sadaqah
        
        
          in
        
        
          the shape of a smile, or by offering a glass of water to a thirsty
        
        
          person, or by uttering a kindly word. Good conduct is frequently
        
        
          referred to in the hadith as
        
        
          sadaqah
        
        
          . Even planting something from
        
        
          which a human being, a bird or an animal may later eat also counts
        
        
          as
        
        
          sadaqah
        
        
          . In this extended sense, acts of loving kindness and even
        
        
          greeting one another with a cheerful expression are regarded as
        
        
          sadaqah
        
        
          . In short, every good deed is
        
        
          sadaqah
        
        
          .