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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
nasai-kubra:6125 – Aḥmad b. ʿAbdullāh b. al-Ḥakam > Muḥammad > Shuʿbah > Ḥabīb > Abū al-Minhāl > Saʾalt al-Barāʾ > al-Ṣarf > Sal Zayd b. Arqam Faʾinnah Khayr Minnī And ʾAʿlam Fasaʾalt Zayd > Sal al-Barāʾ Faʾinnah Khayr Minnī Waʾaʿlam

"I asked Al-Bara bin 'Azib about money exchange. He said: 'Ask Zaid bin Arqam, for he is better than me and more knowledgeable.' So I asked Zaid and he said: 'Ask Al-Bara for he is better than me and more knowledgeable.' And they both said: 'The Messenger of Allah forbade (selling) silver for gold on credit."' (Using translation from Nasāʾī 4577)  

الكبرى للنسائي:٦١٢٥ – أَخْبَرَنَا أَحْمَدُ بْنُ عَبْدِ اللهِ بْنِ الْحَكَمِ عَنْ مُحَمَّدٍ قَالَ حَدَّثَنَا شُعْبَةُ عَنْ حَبِيبٍ قَالَ سَمِعْتُ أَبَا الْمِنْهَالِ قَالَ سَأَلْتُ الْبَرَاءَ عَنِ الصَّرْفِ فَقَالَ سَلْ زَيْدَ بْنَ أَرْقَمَ؛ فَإِنَّهُ خَيْرٌ مِنِّي وَأَعْلَمُ فَسَأَلْتُ زَيْدًا فَقَالَ

سَلِ الْبَرَاءَ؛ فَإِنَّهُ خَيْرٌ مِنِّي وَأَعْلَمُ فَقَالَا جَمِيعًا نَهَى رَسُولُ اللهِ ﷺ عَنِ الْوَرِقِ بِالذَّهَبِ دَيْنًا  

See similar narrations below:

Collected by Muslim, Nasāʾī
muslim:1589b – ʿUbaydullāh b. Muʿādh al-ʿAnbarī from my father > Shuʿbah > Ḥabīb > Abū al-Minhāl > Saʾalt al-Barāʾ b. ʿĀzib > al-Ṣarf > Sal Zayd b. Arqam Fahū Aʿlam Fasaʾalt Zayd > Sal al-Barāʾ Faʾinnah Aʿlam Thum

I asked al-Bara' b. Azib about the exchange of (gold for silver or vice versa), whereupon he said: you better ask Zaid b. Arqam for he knows more than I. So I asked Zaid but he said: You better ask al-Bara' for he knows more than I. Then both of them said: Messenger of Allah ﷺ forbade the sale of silver for gold when payment is to be made in future.  

مسلم:١٥٨٩b – حَدَّثَنَا عُبَيْدُ اللَّهِ بْنُ مُعَاذٍ الْعَنْبَرِيُّ حَدَّثَنَا أَبِي حَدَّثَنَا شُعْبَةُ عَنْ حَبِيبٍ أَنَّهُ سَمِعَ أَبَا الْمِنْهَالِ يَقُولُ سَأَلْتُ الْبَرَاءَ بْنَ عَازِبٍ عَنِ الصَّرْفِ فَقَالَ سَلْ زَيْدَ بْنَ أَرْقَمَ فَهُوَ أَعْلَمُ فَسَأَلْتُ زَيْدًا فَقَالَ

سَلِ الْبَرَاءَ فَإِنَّهُ أَعْلَمُ ثُمَّ قَالاَ نَهَى رَسُولُ اللَّهِ ﷺ عَنْ بَيْعِ الْوَرِقِ بِالذَّهَبِ دَيْنًا  

nasai:4577 – Aḥmad b. ʿAbdullāh b. al-Ḥakam > Muḥammad > Shuʿbah > Ḥabīb > Abū al-Minhāl > Saʾalt al-Barāʾ b. ʿĀzib > al-Ṣarf > Sal Zayd b. Arqam Faʾinnah Khayr Minnī And ʾAʿlam Fasaʾalt Zayd > Sal al-Barāʾ Faʾinnah Khayr Minnī Waʾaʿlam

"I asked Al-Bara bin 'Azib about money exchange. He said: 'Ask Zaid bin Arqam, for he is better than me and more knowledgeable.' So I asked Zaid and he said: 'Ask Al-Bara for he is better than me and more knowledgeable.' And they both said: 'The Messenger of Allah forbade (selling) silver for gold on credit."'  

النسائي:٤٥٧٧ – أَخْبَرَنَا أَحْمَدُ بْنُ عَبْدِ اللَّهِ بْنِ الْحَكَمِ عَنْ مُحَمَّدٍ قَالَ حَدَّثَنَا شُعْبَةُ عَنْ حَبِيبٍ قَالَ سَمِعْتُ أَبَا الْمِنْهَالِ قَالَ سَأَلْتُ الْبَرَاءَ بْنَ عَازِبٍ عَنِ الصَّرْفِ فَقَالَ سَلْ زَيْدَ بْنَ أَرْقَمَ فَإِنَّهُ خَيْرٌ مِنِّي وَأَعْلَمُ فَسَأَلْتُ زَيْدًا فَقَالَ

سَلِ الْبَرَاءَ فَإِنَّهُ خَيْرٌ مِنِّي وَأَعْلَمُ فَقَالاَ جَمِيعًا نَهَى رَسُولُ اللَّهِ ﷺ عَنِ الْوَرِقِ بِالذَّهَبِ دَيْنًا