Does the noble Hadith: "Do not sell paper for paper except like for like, and do not prefer one part over another" include the selling of a Dinar for a Dollar or a Franc for a Dinar?

When selling gold for gold or silver for silver, neither excess (favoring one side) nor delay is permissible. This also applies to selling currency for the same currency, such as dollars for dollars. However, when selling gold for silver or vice-versa, excess is permissible, but delay is not. This applies to selling dinars for dollars. "Al-Wariq" means silver, and "la tashuffu" means do not increase or decrease.