The Prophet (ﷺ) sent Mu`adh to Yemen and said, "Invite the people to testify that none has the right to beworshipped but Allah and I am Allah's Messenger (ﷺ), and if they obey you to do so, then teach them thatAllah has enjoined on them five prayers in every day and night (in twenty-four hours), and if theyobey you to do so, then teach them that Allah has made it obligatory for them to pay the Zakat fromtheir property and it is to be taken from the wealthy among them and given to the poor."