Sunan an-Nasa'i, Book 44, Hadith 119 (In-Book) ⓘ
It was narrated from Abu Hurairah that the Messenger of Allah said: "Dinar for Dinar Dirham for Dirham, no difference between them."
أَخْبَرَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، عَنْ مَالِكٍ، عَنْ مُوسَى بْنِ أَبِي تَمِيمٍ، عَنْ سَعِيدِ بْنِ يَسَارٍ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " الدِّينَارُ بِالدِّينَارِ وَالدِّرْهَمُ بِالدِّرْهَمِ لاَ فَضْلَ بَيْنَهُمَا " .
also referenced under: Hadith 4567 (Reference) & Volume 5, Book 44, Hadith 4571 (DarusSalam)