Bukhari :: Book 2 :: Volume 23 :: Hadith 478
Narrated Ibn Abbas:
Thy Prophet sent Muadh to Yemen and said, "Invite the people to testify that none has the right to be worshipped but Allah and I am Allah's Apostle, and if they obey you to do so, then teach them that Allah has enjoined on them five prayers in every day and night (in twenty-four hours), and if they obey you to do so, then teach them that Allah has made it obligatory for them to pay the Zakat from their property and it is to be taken from the wealthy among them and given to the poor."
Source materials are from the University of Southern California MSA site|
Hadith eBooks converted from Imaan Star