4584An NasaiSahih (Darussalam)أَخْبَرَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، عَنْ مَالِكٍ، عَنْ حُمَيْدِ بْنِ قَيْسٍ الْمَكِّيِّ، عَنْ مُجَاهِدٍ، قَالَ قَالَ ابْنُ عُمَرَ الدِّينَارُ بِالدِّينَارِ وَالدِّرْهَمُ بِالدِّرْهَمِ لاَ فَضْلَ بَيْنَهُمَا هَذَا عَهْدُ نَبِيِّنَا صلى الله عليه وسلم إِلَيْنَا .It was narrated that Mujahid said:"Umar said: Dinar for Dinar, Dirham for Dirham, no difference between them, this is the obligation that our Prophet enjoined upon us."Reference: Sunan an-Nasa'i 4568 In-book : Book 44, Hadith 120 English translation : Vol. 5, Book 44, Hadith 4572