Ishaq ibn Ammar narrates: I said to Abu Ibrahim (Imam Musa ibn Jafar Al-Kadhim عليه السلام): A man directs another man to a commodity and says, 'Buy it, and half of it will be mine.' The man buys it and pays from his own money. The Imam عليه السلام replied: "He is entitled to half the profit." I asked: "What if there is a loss; does he also bear part of the loss?" The Imam عليه السلام said: "Yes, he is liable for the loss just as he shares in the profit."