[Machine] "He is permissible with an increase or decrease, as long as it is hand in hand," Abu Salih said. I asked Abu Saeed Al-Khudri about that, and he said, "It is forbidden, except in equal amounts." So I informed Abu Saeed Al-Khudri of what Ibn Abbas said, and I informed Ibn Abbas of what Abu Saeed Al-Khudri said. They both met while I was with them, and Abu Saeed Al-Khudri began, saying, "What is this verdict that people are giving regarding buying gold with silver, commanding them to buy it with an increase or decrease, hand in hand?" Ibn Abbas said, "I am not more knowledgeable than you in the company of the Messenger of Allah ﷺ. And this is Zaid bin Arqam and Al-Bara' bin 'Azib saying, 'We heard the Prophet ﷺ say..."  

«هُوَ حَلَالٌ بِزِيَادَةٍ أَوْ نُقْصَانٍ إِذَا كَانَ يَدًا بِيَدٍ» قَالَ أَبُو صَالِحٍ فَسَأَلْتُ أَبَا سَعِيدٍ الْخُدْرِيَّ عَنْ ذَلِكَ فَقَالَ «هُوَ حَرَامٌ إِلَّا مِثْلًا بِمِثْلٍ» فَأَخْبَرْتُ أَبَا سَعِيدٍ بِمَا قَالَ ابْنُ عَبَّاسٍ وَأَخْبَرْتُ ابْنَ عَبَّاسٍ بِمَا قَالَ أَبُو سَعِيدٍ الْخُدْرِيُّ فَالْتَقَيَا وَأَنَا مَعَهُمَا فَابْتَدَأَهُ أَبُو سَعِيدٍ الْخُدْرِيُّ فَقَالَ ابْنُ عَبَّاسٍ مَا هَذِهِ الْفُتْيَا الَّتِي تُفْتِي بِهَا النَّاسَ فِي بَيْعِ الذَّهَبِ بِالْفِضَّةِ تَأْمُرَهُمْ أَنْ يَشْتَرُوهُ بِزِيَادَةٍ بِنُقْصَانٍ أَوْ زِيَادَةٍ يَدًا بِيَدٍ فَقَالَ ابْنُ عَبَّاسٍ مَا أَنَا بِأَقْدَمِكُمْ صُحْبَةً لِرَسُولِ اللهِ ﷺ وَهَذَا زَيْدُ بْنُ أَرْقَمَ وَالْبَرَاءُ بْنُ عَازِبٍ يَقُولَانِ سَمِعْنَا النَّبِيَّ ﷺ