Chapter on Zakat of Wheat, Barley, Dates, and Raisins

And from him, from Muhammad ibn al-Husayn, from Safwan ibn Yahya, from some of our companions, from Ibn Sinan, who said: I asked Abu Abdillah عليه السلام, peace be upon him, about ‘zakat, In how much does it become obligatory in wheat and barley?’ Imam عليه السلام said: “In one wasq.”