Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) forbade two types of transactions and two types of clothing. As for the two types of transactions, they are mulamasah and munabadhah. As for the two types of clothing, they are ishtimal as-samma' and for a man to wrap himself in a single garment as an ihtiba' in such a way that his private parts are not covered by the garment.