Yahya related to me from Malik that he had heard from his grandfather, Malik ibn Abi Amir that Uthman ibn Affan said, "The Messenger of Allah ﷺ said to me, 'Do not sell a dinar for two dinars nor a dirham for two dirhams.' "
قَالَ قَالَ لِي رَسُولُ اللَّهِ ﷺ لاَ تَبِيعُوا الدِّينَارَ بِالدِّينَارَيْنِ وَلاَ الدِّرْهَمَ بِالدِّرْهَمَيْنِ