Chapter on Usury (Riba)

Jamil ibn Darraj narrated from Zurarah, from Abu Ja'far Imam Muhammad ibn Ali Al-Baqir عليه السلام, who said: "There is no harm in exchanging a camel for two camels or an animal for two animals, as long as it is done hand-to-hand." And Imam عليه السلام said: "There is no harm in exchanging one garment for two garments, whether hand-to-hand or on credit, if you describe them."