Ibrahim al-Nakha'i إبراهيم النخعي · The Book of Zakah

"No Sadaqah is due on less than five Dhawd (head of camel), and no Sadaqah is due on less than five Awaq, and no Sadaqah is due on less than five Awsuq."

"This is the obligation of Sadaqah which the Messenger of Allah enjoined upon the Muslims, as Allah , the Mighty and Sublime, commanded the Messenger of Allah .Whoever is asked for it in the manner explained (in the letter of Abu Bakar), let him give it, and whoever is asked for more than that, let him not give it. When there are less than twenty-five camels, for every five camels, one sheep (is to be given). If the number reaches…

"Go to the Messenger of Allah and say to him: 'O Messenger of Allah, appoint us to collect the Sadaqat!' 'Ali bin Abi Talib came along when we were like that, and he said to them: "The Messenger of Allah will not appoint any of you to collect the Sadaqah."' 'Abdul-Muttalib said: "So I went with Al-Fadl until we came to the Messenger of Allah and he said to us: "This Zakah is the dirt of the people, and it…