The Book of Financial Transactions

"‏ تَبَايَعُوا الذَّهَبَ بِالْفِضَّةِ كَيْفَ شِئْتُمْ وَالْفِضَّةَ بِالذَّهَبِ كَيْفَ شِئْتُمْ ‏"

"The Messenger of Allah forbade us from selling silver for silver unless it was of equal amounts, or selling gold for gold unless it was of equal amounts. The messenger of Allah said: 'Sell gold for silver however you want, and silver for gold however you want."'

"‏ لاَ رِبًا إِلاَّ فِي النَّسِيئَةِ ‏"

"There is no Riba except in credit.'

"‏ إِنَّمَا الرِّبَا فِي النَّسِيئَةِ ‏"

"I said to Ibn Abbas: 'Do you think that what you are saying is something that you found in the Book of Allah, or something that you heard from the Messenger of Allah?' He said: 'I did not find it in the Book of Allah, nor did I hear it from the messenger of Allah, rather Usamah bin Zaid told me that the Messenger of Allah said: 'Riba is only in credit."'

"‏ لاَ بَأْسَ أَنْ تَأْخُذَهَا بِسِعْرِ يَوْمِهَا مَا لَمْ تَفْتَرِقَا وَبَيْنَكُمَا شَىْءٌ ‏"

"I used to sell camels at Al-Baqi and I would sell Dinars in exchange for Dirhams. I came to the Prophet in the house of Hafsah and said: 'O Messenger of Allah, I want to ask you: I sell camels in Al-Baqi and I sell Dinars in exchange for Dirhams. He said: 'There is nothing wrong with it if you take the price on that day, unless you depart when there is still unfinished business between you both (buyer and seller)."'

"‏ إِذَا بَايَعْتَ صَاحِبَكَ فَلاَ تُفَارِقْهُ وَبَيْنَكَ وَبَيْنَهُ لَبْسٌ ‏"

"I used to sell gold for silver, or silver for gold. I came to the Messenger of Allah and told him about that, and he said: 'If you make a deal with your companion, d o not leave him when there is still any ambiguity (in the deal) between you."'

أَخْبَرَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قَالَ حَدَّثَنَا وَكِيعٌ، قَالَ أَنْبَأَنَا مُوسَى بْنُ نَافِعٍ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، أَنَّهُ كَانَ يَكْرَهُ أَنْ يَأْخُذَ، الدَّنَانِيرَ مِنَ الدَّرَاهِمِ وَالدَّرَاهِمَ مِنَ الدَّنَانِيرِ ‏.‏

he did not like to exchange Dinars for Dirhams or Dirhams for Dinars.

أَخْبَرَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قَالَ أَنْبَأَنَا مُؤَمَّلٌ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ أَبِي هَاشِمٍ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عُمَرَ، أَنَّهُ كَانَ لاَ يَرَى بَأْسًا - يَعْنِي - فِي قَبْضِ الدَّرَاهِمِ مِنَ الدَّنَانِيرِ وَالدَّنَانِيرِ مِنَ الدَّرَاهِمِ ‏.‏

he did not see anything wrong with parying Dirhams for Dinars.

أَخْبَرَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قَالَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ أَبِي الْهُذَيْلِ، عَنْ إِبْرَاهِيمَ، فِي قَبْضِ الدَّنَانِيرِ مِنَ الدَّرَاهِمِ أَنَّهُ كَانَ يَكْرَهُهَا إِذَا كَانَ مِنْ قَرْضٍ ‏.‏

he disliked it (this transaction) if it was done on credit. (Da 'if )

أَخْبَرَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قَالَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ مُوسَى أَبِي شِهَابٍ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، أَنَّهُ كَانَ لاَ يَرَى بَأْسًا وَإِنْ كَانَ مِنْ قَرْضٍ ‏.‏

he did not see anything wrong with it even if it was on credit.

أَخْبَرَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قَالَ حَدَّثَنَا وَكِيعٌ، قَالَ حَدَّثَنَا مُوسَى بْنُ نَافِعٍ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، بِمِثْلِهِ ‏.‏ قَالَ أَبُو عَبْدِ الرَّحْمَنِ كَذَا وَجَدْتُهُ فِي هَذَا الْمَوْضِعِ ‏.‏

This is what I have found on this topic.