Selling an animal in return for another animal whether on an equal or unequal basis and whether it is on the spot or delayed

A: There is no objection concerning selling an animal in return for another animal whether on an equal or unequal basis and whether it is on the spot or delayed. This is on the condition that the number and description of the animals that will be delivered later be known, as well as the deadline for repay. This is because the Prophet (peace be upon him) ordered `Abdullah ibn `Amr (may Allah be pleased with him and his father) to buy camels for the fighters (in the cause of Allah) and to pay their price when the camels that were intended for Sadaqah (Zakah or obligatory charity) would come. Thus, he bought two or three camels in return for one. (Related by Imam Ahmad and others through authentic Isnad [chain of narrators])May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family and Companions.