(16) باب مَا تَجِبُ فِيهِ الزَّكَاةُ مِنَ الأَمْوَالِ
It was narrated from Amr bin:
Shu'aib, form his father, that his grandfather said: "The Messenger of Allah only prescribed Zakat on these five things: wheat, barley, dates, raisins and corn."
Reference: Sunan Ibn Majah 1815
In-book reference: Book 8, Hadith 33
English translation: Vol. 3, Book 8, Hadith 1815