Messenger of Allah ﷺ said, "Do not sell gold for gold unless equivalent in weight, and do not sell less amount for greater amount or vice versa; and do not sell silver for silver unless equivalent in weight, and do not sell less amount for greater amount or vice versa and do not sell gold or silver that is not present at the moment of exchange for gold or silver that is present.  

عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ ؓ أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ تَبِيعُوا الذَّهَبَ بِالذَّهَبِ إِلاَّ مِثْلاً بِمِثْلٍ وَلاَ تُشِفُّوا بَعْضَهَا عَلَى بَعْضٍ وَلاَ تَبِيعُوا الْوَرِقَ بِالْوَرِقِ إِلاَّ مِثْلاً بِمِثْلٍ وَلاَ تُشِفُّوا بَعْضَهَا عَلَى بَعْضٍ وَلاَ تَبِيعُوا مِنْهَا غَائِبًا بِنَاجِزٍ  

Do not sell gold for gold, except like for like, and don't increase something of it upon something; and don't sell silver unless like for like, and don't increase some thing of it upon something, and do not sell for ready money something to be given later.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ تَبِيعُوا الذَّهَبَ بِالذَّهَبِ إِلاَّ مِثْلاً بِمِثْلٍ وَلاَ تُشِفُّوا بَعْضَهَا عَلَى بَعْضٍ وَلاَ تَبِيعُوا الْوَرِقَ بِالْوَرِقِ إِلاَّ مِثْلاً بِمِثْلٍ وَلاَ تُشِفُّوا بَعْضَهَا عَلَى بَعْضٍ وَلاَ تَبِيعُوا مِنْهَا غَائِبًا بِنَاجِزٍ  

"Ibn 'Umar and I went to Abu Sa'eed and he narrated to us: 'the Messenger of Allah ﷺ said - and I heard him with these [two] ears: "Do not sell gold for gold except kind for kind, nor sliver for silver except kind for kind, do not exchange more of one than the other, and do not sell what is not present from them for what is present."  

انْطَلَقْتُ أَنَا وَابْنُ عُمَرَ إِلَى أَبِي سَعِيدٍ فَحَدَّثَنَا أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ سَمِعَتْهُ أُذُنَاىَ هَاتَانِ يَقُولُ لاَ تَبِيعُوا الذَّهَبَ بِالذَّهَبِ إِلاَّ مِثْلاً بِمِثْلٍ وَالْفِضَّةَ بِالْفِضَّةِ إِلاَّ مِثْلاً بِمِثْلٍ لاَ يُشَفُّ بَعْضُهُ عَلَى بَعْضٍ وَلاَ تَبِيعُوا مِنْهُ غَائِبًا بِنَاجِزٍ  

Yahya related to me from Malik from Nafi from Abu Said al-Khudri that the Messenger of Allah ﷺ said, "Do not sell gold for gold except like for like and do not increase one part over another part. Do not sell silver for silver, except like for like and do not increase one part over another part. Do not sell some of it which is not there for some of it which is."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ تَبِيعُوا الذَّهَبَ بِالذَّهَبِ إِلاَّ مِثْلاً بِمِثْلٍ وَلاَ تُشِفُّوا بَعْضَهَا عَلَى بَعْضٍ وَلاَ تَبِيعُوا الْوَرِقَ بِالْوَرِقِ إِلاَّ مِثْلاً بِمِثْلٍ وَلاَ تُشِفُّوا بَعْضَهَا عَلَى بَعْضٍ وَلاَ تَبِيعُوا مِنْهَا شَيْئًا غَائِبًا بِنَاجِزٍ  

Yahya related to me from Malik from Abdullah ibn Dinar from Abdullah ibn Umar that Umar ibn al-Khattab said, "Do not sell gold for gold except like for like. Do not increase part of it over another part. Do not sell silver for silver except like for like, and do not increase part of it over another part. Do not sell some of it which is there for some of it which is not. If someone asks you to wait for payment until he has been to his house, do not leave him. I fear rama for you." Rama is usury.  

قَالَ لاَ تَبِيعُوا الذَّهَبَ بِالذَّهَبِ إِلاَّ مِثْلاً بِمِثْلٍ وَلاَ تُشِفُّوا بَعْضَهَا عَلَى بَعْضٍ وَلاَ تَبِيعُوا الْوَرِقَ بِالْوَرِقِ إِلاَّ مِثْلاً بِمِثْلٍ وَلاَ تُشِفُّوا بَعْضَهَا عَلَى بَعْضٍ وَلاَ تَبِيعُوا شَيْئًا مِنْهَا غَائِبًا بِنَاجِزٍ وَإِنِ اسْتَنْظَرَكَ إِلَى أَنْ يَلِجَ بَيْتَهُ فَلاَ تُنْظِرْهُ إِنِّي أَخَافُ عَلَيْكُمُ الرَّمَاءَ وَالرَّمَاءُ هُوَ الرِّبَا  

Do not sell gold for gold, except like for like, and don't increase something of it upon something; and don't sell silver unless like for like, and don't increase some thing of it upon something, and do not sell for ready money something to be given later. (Using translation from Muslim 1584a)  

قَالَ رَسُولُ اللهِ ﷺ لَا تَبِيعُوا الذَّهَبَ بِالذَّهَبِ إِلَّا مِثْلًا بِمِثْلٍ لَا يَشِفُّ بَعْضُهَا عَلَى بَعْضٍ وَلَا تَبِيعُوا الْوَرِقَ بِالْوَرِقِ إِلَّا مِثْلًا بِمِثْلٍ لَا يَشِفُّ بَعْضُهَا عَلَى بَعْضٍ وَلَا تَبِيعُوا غَائِبًا بِنَاجِزٍ  

Do not sell gold for gold, except like for like, and don't increase something of it upon something; and don't sell silver unless like for like, and don't increase some thing of it upon something, and do not sell for ready money something to be given later. (Using translation from Muslim 1584a)  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ «لَا تَبِيعُوا الذَّهَبَ بِالذَّهَبِ إِلَّا مِثْلًا بِمِثْلٍ وَلَا تُشِفُّوا بَعْضَهَا عَلَى بَعْضٍ وَلَا تَبِيعُوا الْوَرِقَ بِالْوَرِقِ إِلَّا مِثْلًا بِمِثْلٍ وَلَا تُشِفُّوا بَعْضَهَا عَلَى بَعْضٍ وَلَا تَبِيعُوا شَيْئًا مِنْهَا غَائِبًا بِنَاجِزٍ»  

Messenger of Allah ﷺ said, "Do not sell gold for gold unless equivalent in weight, and do not sell less amount for greater amount or vice versa; and do not sell silver for silver unless equivalent in weight, and do not sell less amount for greater amount or vice versa and do not sell gold or silver that is not present at the moment of exchange for gold or silver that is present. (Using translation from Bukhārī 2177)  

أَنَّ رَسُولَ اللهِ ﷺ قَالَ «لَا تَبِيعُوا الذَّهَبَ بِالذَّهَبِ إِلَّا مِثْلًا بِمِثْلٍ وَلَا تُشِفُّوا بَعْضَهَا عَلَى بَعْضٍ وَلَا تَبِيعُوا الْوَرِقَ بِالْوَرِقِ إِلَّا مِثْلًا بِمِثْلٍ وَلَا تُشِفُّوا بَعْضَهَا عَلَى بَعْضٍ وَلَا تَبِيعُوا مِنْهَا شَيْئًا غَائِبًا بِنَاجِزٍ»  

"لا تَبِيعُوا الذَّهَبَ بِالذَّهَبِ إِلا مثْلًا بِمْثِلٍ، وَلا تُشِفُّوا بَعْضَهَا عَلَى بَعْضٍ، وَلا تَبِيعُوا الوَرِقَ بِالْوَرِقِ إِلا مِثْلا بِمثْلٍ، ولا تُشفُّوا بَعْضَهَا عَلَى بَعْضٍ، وَلَا تَبيعُوا مِنْها غَائِبًا بنَاجِزٍ"، زَادَ عب: "فَمَنْ زَادَ أَو اسْتَزَادَ فَقَدْ أَرْبَى".