[Machine] The Prophet ﷺ prohibited selling gold for gold, silver for silver, wheat for wheat, dates for dates, barley for barley, and salt for salt, except in equal amounts and at the same time. Whoever adds more or asks for more has practiced usury.
إِنَّ رَسُولَ اللَّهِ ﷺ «نَهَى عَنْ بَيْعِ الذَّهَبِ بِالذَّهَبِ وَالْفِضَّةِ بِالْفِضَّةِ وَالْبُرِّ بِالْبُرِّ وَالتَّمْرِ بِالتَّمْرِ وَالشَّعِيرِ بِالشَّعِيرِ وَالْمِلْحِ بِالْمِلْحِ إِلَّا مِثْلًا بِمِثْلٍ سَوَاءً بِسَوَاءٍ فَمَنْ زَادَ أَوِ ازْدَادَ فَقَدْ أَرْبَى»