Amr ibn Shu'aib narrates from his father, from his grandfather, that the Prophet Muhammad (peace and blessings be upon him) said: "No (zakat) payment is due on less than five camels, no payment is due on less than forty goats, no payment is due on less than thirty cows, no payment is due on less than twenty mithqal of gold, no payment is due on less than two hundred dirhams (of silver), and no payment is due on less than five wasq (of grain). As for dates, grapes, wheat, and barley, the 'ushr (one-tenth) will be taken from them; that which is irrigated naturally, the full 'ushr is due, and that which is irrigated by buckets (artificially), half of the 'ushr is due."