Musannaf Ibn Abi Shaybah 23690 — A Syrian dinar for a Kufan dinar

Ibrahim used to dislike that a Syrian dinar be sold for a Kufan dinar and a dirham. There is no harm when a man owes you a Kufan dinar, and he gives you a Syrian dinar, and you buy the excess from him for something, provided the two do not part until what is between them has been concluded.