Sa'id bin Abi 'Aruba سعيد بن أبي عروبة · 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."