What is the ruling on investing by buying and selling the new Iraqi Dinar when its value rises, and what is the ruling on taking a commission for buying this currency for others?

It is permissible to invest in dinars, buying and selling, according to its regulations. It is permissible to take a fee for traveling to purchase it if you are acting as their agent in the purchase and the fee is known. However, if you are not their agent, it is not permissible to take the price from them and then travel to purchase it, due to the absence of the condition of immediate possession in the مجلس (session/gathering) and because the Prophet, peace and blessings be upon him, forbade selling what you do not possess.