Chapter on Sales

Ibn Abi Umayr narrated from Al-Hasan ibn Atiyyah, who said: I asked Abu Abdillah عليه السلام: "We buy food from ships, and then we measure it, sometimes finding an excess." Imam عليه السلام said: "And perhaps it might sometimes be less for you?" I said: "Yes." Imam عليه السلام said: "If it is less, do they compensate you?" I said: "No." Imam عليه السلام said: "Then there is no harm."