I say, and with God's success: The first rule has nothing to do with what I said; because when its price changed after a while, it was permissible to sell it at a new price according to the new agreement, and the religious prohibition is in a single contract; because there must be equality and immediate exchange in the session, as the hadiths have consistently reported. Both gold and currency are considered of the same kind of prices, so it takes its ruling, and God knows best.