Qatada قتادة · The Book of Zakah

"Isbagh Al-Wudu is half of faith; Alhamdu lillah (praise be to Allah) fills the balance; the Tasbih and the Takbir fill the heavens and Earth; the Salah is light; the Zakah is a sign (of sincerity); patience is an illuminating torch; and the Qur'an is proof, either for you or against you."

"I heard As-Sa'ib bin Yazid say: 'During the time of Allah's messenger, the Sa' was equal to a Mudd and third of the Mudd you use today, and the Sa' of today has become large."' (Sahih) Abu 'Abdur-Rahman (An-Nasa'i) said: And Ziyad bin Ayyub narrated it to me.

"While we were with the Messenger of Allah in the early hours of the morning, some people came who were naked and barefoot, with their swords hung (around their necks). Most of them, may all of them, belonged to the tribe of Mudar. The face of the Messenger of Allah changed when he saw them in poverty. He went in (to his house) then he came out and ordered Bilah to call the Adhan and then the Iqamah. He (the…

"I heard that you do some jobs for the people but when payment is given to you, you refuse it." I said: "(that is so)." 'Umar, may Allah be pleased with him, said: "Why do you do that? I said: "I have horses and slaves and am well off, and I wanted my work to be an act of charity toward the Muslims." 'Umar said to him: "Do not do that. I used to want the same thing as you.…