I was in Syria (having) a circle (of friends). in which was Muslim b. Yasir. There came Abu'l-Ash'ath. He (the narrator) said that they (the friends) called him: Abu'l-Ash'ath, Abu'l-Ash'ath, and he sat down. I said to him: Narrate to our brother the hadith of Ubada b. Samit. He said: Yes. We went out on an expedition, Mu'awiya being the leader of the people, and we gained a lot of spoils of war. And there was one silver utensil in what we took as spoils. Mu'awiya ordered a person to sell it for payment to the people (soldiers). The people made haste in getting that. The news of (this state of affairs) reached 'Ubada b. Samit, and he stood up and said: I heard Messenger of Allah ﷺ forbidding the sale of gold by gold, and silver by silver, and wheat by wheat, and barley by barley, and dates by dates, and salt by salt, except like for like and equal for equal. So he who made an addition or who accepted an addition (committed the sin of taking) interest. So the people returned what they had got. This reached Mu'awiya. and he stood up to deliver an address. He said: What is the matter with people that they narrate from the Messenger ﷺ such tradition which we did not hear though we saw him (the Holy Prophet) and lived in his company? Thereupon, Ubida b. Samit stood up and repeated that narration, and then said: We will definitely narrate what we heard from Messenger of Allah ﷺ though it may be unpleasant to Mu'awiya (or he said: Even if it is against his will). I do not mind if I do not remain in his troop in the dark night. Hammad said this or something like this.
نَعَمْ غَزَوْنَا غَزَاةً وَعَلَى النَّاسِ مُعَاوِيَةُ فَغَنِمْنَا غَنَائِمَ كَثِيرَةً فَكَانَ فِيمَا غَنِمْنَا آنِيَةٌ مِنْ فِضَّةٍ فَأَمَرَ مُعَاوِيَةُ رَجُلاً أَنْ يَبِيعَهَا فِي أَعْطِيَاتِ النَّاسِ فَتَسَارَعَ النَّاسُ فِي ذَلِكَ فَبَلَغَ عُبَادَةَ بْنَ الصَّامِتِ فَقَامَ فَقَالَ إِنِّي سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَنْهَى عَنْ بَيْعِ الذَّهَبِ بِالذَّهَبِ وَالْفِضَّةِ بِالْفِضَّةِ وَالْبُرِّ بِالْبُرِّ وَالشَّعِيرِ بِالشَّعِيرِ وَالتَّمْرِ بِالتَّمْرِ وَالْمِلْحِ بِالْمِلْحِ إِلاَّ سَوَاءً بِسَوَاءٍ عَيْنًا بِعَيْنٍ فَمَنْ زَادَ أَوِ ازْدَادَ فَقَدْ أَرْبَى فَرَدَّ النَّاسُ مَا أَخَذُوا فَبَلَغَ ذَلِكَ مُعَاوِيَةَ فَقَامَ خَطِيبًا فَقَالَ أَلاَ مَا بَالُ رِجَالٍ يَتَحَدَّثُونَ عَنْ رَسُولِ اللَّهِ ﷺ أَحَادِيثَ قَدْ كُنَّا نَشْهَدُهُ وَنَصْحَبُهُ فَلَمْ نَسْمَعْهَا مِنْهُ فَقَامَ عُبَادَةُ بْنُ الصَّامِتِ فَأَعَادَ الْقِصَّةَ ثُمَّ قَالَ لَنُحَدِّثَنَّ بِمَا سَمِعْنَا مِنْ رَسُولِ اللَّهِ ﷺ وَإِنْ كَرِهَ مُعَاوِيَةُ أَوْ قَالَ وَإِنْ رَغِمَ مَا أُبَالِي أَنْ لاَ أَصْحَبَهُ فِي جُنْدِهِ لَيْلَةً سَوْدَاءَ قَالَ حَمَّادٌ هَذَا أَوْ نَحْوَهُ