(4) باب زَكَاةِ الْوَرِقِ وَالذَّهَبِ
Ali narrated that:
the Messenger of Allah said: "I have exempted you from having to pay Zakat on horses and slaves, bring one quarter of one-tenth of every forty Dirhan: one Dirham." (RU)
Reference (RU): Sunan Ibn Majah 1790 (RU)
In-book reference (RU): Book 8, Hadith 8 (RU)
English translation (RU): Vol. 3, Book 8, Hadith 1790 (RU)