Muhammad bin 'Isa bin Hyan محمد بن عيسى بن حيان · The Chapters Regarding Zakat

the Prophet send Muadh to Yemen, and said: “You are going to some people among the People of the Book. Call them to bear witness that none has the right to be worshipped but Allah, and that I am the messenger of Allah. If they obey that, then tell them that Allah has enjoined upon them five prayers every day and night. If they obey that, then tell them that Allah has enjoined upon them charity (Zakat) from their wealth,…