That the Prophet ﷺ said: "Gold for gold, kind for kind; silver for silver, kind for kind; dried-dates for dried-dates, kind for kind; wheat for wheat, kind for kind; salt for salt, kind for kind; and barley for barley, kind for kind. Whoever increases or seeks an increase, then he dealt with Riba. Sell gold for silver as you wish, hand to hand; and sell wheat for dried-dates as you wish, hand to hand; and sell barley for dried-dates as you wish, hand to hand." [He said:] There are narrations on this topic from Abu Sa'eed, Abu Hurairah, Bilal, And Anas.  

عَنِ النَّبِيِّ ﷺ قَالَ الذَّهَبُ بِالذَّهَبِ مِثْلاً بِمِثْلٍ وَالْفِضَّةُ بِالْفِضَّةِ مِثْلاً بِمِثْلٍ وَالتَّمْرُ بِالتَّمْرِ مِثْلاً بِمِثْلٍ وَالْبُرُّ بِالْبُرِّ مِثْلاً بِمِثْلٍ وَالْمِلْحُ بِالْمِلْحِ مِثْلاً بِمِثْلٍ وَالشَّعِيرُ بِالشَّعِيرِ مِثْلاً بِمِثْلٍ فَمَنْ زَادَ أَوِ ازْدَادَ فَقَدْ أَرْبَى بِيعُوا الذَّهَبَ بِالْفِضَّةِ كَيْفَ شِئْتُمْ يَدًا بِيَدٍ وَبِيعُوا الْبُرَّ بِالتَّمْرِ كَيْفَ شِئْتُمْ يَدًا بِيَدٍ وَبِيعُوا الشَّعِيرَ بِالتَّمْرِ كَيْفَ شِئْتُمْ يَدًا بِيَدٍ قَالَ وَفِي الْبَابِ عَنْ أَبِي سَعِيدٍ وَأَبِي هُرَيْرَةَ وَبِلاَلٍ وَأَنَسٍ