al-Ma'rur bin Suwayd al-Asadi المعرور بن سويد الأسدي أبو أمية الكوفي · The Book of Zakah

"The Messenger of Allah said to Mu'adh when he sent him to Yemen: 'You are going to some of the People of the book. When you come to them, call them to testify that there is none worthy of worship except Allah and that Muhammad is the Messenger of Allah. If they obey you in that, then tell them that Allah, the Mighty and Sublime, has enjoined on them a charity (Zakah) to be taken from their rich and given…

"The Messenger of Allah sent me to Yemen, and he commanded me to take from every forty cows, a cow in its third year, and from every thirty, a Tabi '(two-year-old), and from every person who had reached the age of puberty a Dinar or is equivalent in Maafir." (Daif)