The Book of Musaqah
22/15. Chapter:
Exchange and Selling Gold for Silver on the spot
Sahih Muslim
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ الْقَعْنَبِيُّ، حَدَّثَنَا سُلَيْمَانُ، - يَعْنِي ابْنَ بِلاَلٍ - عَنْ مُوسَى، بْنِ أَبِي تَمِيمٍ عَنْ سَعِيدِ بْنِ يَسَارٍ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " الدِّينَارُ بِالدِّينَارِ لاَ فَضْلَ بَيْنَهُمَا وَالدِّرْهَمُ بِالدِّرْهَمِ لاَ فَضْلَ بَيْنَهُمَا " .
Abu Huraira (Allah be pleased with him) reported Allah's Messenger (ﷺ) as saying: Let dinar be exchanged for dinar, with no addition on either side and dirham be exchanged for dirham with no addition on either side.
Reference : Sahih Muslim 1588dIn-book reference : Book 22, Hadith 108USC-MSA web (English) reference : Book 10, Hadith 3858