Muwatta Malik, Book 31, Hadith 33 (USC-MSA) ⓘ

Yahya related to me from Malik from Zayd ibn Aslam from Ata ibn Yasar that Muawiya ibn Abi Sufyan sold a gold or silver drinking- vessel for more than its weight. Abu'dDarda said, "I heard the Messenger of Allah, may Allah bless him and grant him peace, forbidding such sales except like for like." Muawiya said to him, "I don't see any harm in it." Abu'd-Darda said to him, "Who will excuse me from Muawiya? I tell him something from the Messenger of Allah, may Allah bless him and grant him peace, and he gives me his own opinion! I will not live in the same land as you!" Then Abu'd-Darda went to Umar ibn al-Khattab and mentioned that to him. Umar ibn al-Khattab therefore wrote to Muawiya, "Do not sell it except like for like, weight for weight."

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ زَيْدِ بْنِ أَسْلَمَ، عَنْ عَطَاءِ بْنِ يَسَارٍ، أَنَّ مُعَاوِيَةَ بْنَ أَبِي سُفْيَانَ، بَاعَ سِقَايَةً مِنْ ذَهَبٍ أَوْ وَرِقٍ بِأَكْثَرَ مِنْ وَزْنِهَا فَقَالَ أَبُو الدَّرْدَاءِ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَنْهَى عَنْ مِثْلِ هَذَا إِلاَّ مِثْلاً بِمِثْلٍ ‏.‏ فَقَالَ لَهُ مُعَاوِيَةُ مَا أَرَى بِمِثْلِ هَذَا بَأْسًا ‏.‏ فَقَالَ أَبُو الدَّرْدَاءِ مَنْ يَعْذِرُنِي مِنْ مُعَاوِيَةَ أَنَا أُخْبِرُهُ عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم وَيُخْبِرُنِي عَنْ رَأْيِهِ لاَ أُسَاكِنُكَ بِأَرْضٍ أَنْتَ بِهَا ‏.‏ ثُمَّ قَدِمَ أَبُو الدَّرْدَاءِ عَلَى عُمَرَ بْنِ الْخَطَّابِ فَذَكَرَ ذَلِكَ لَهُ فَكَتَبَ عُمَرُ بْنُ الْخَطَّابِ إِلَى مُعَاوِيَةَ أَنْ لاَ تَبِيعَ ذَلِكَ إِلاَّ مِثْلاً بِمِثْلٍ وَزْنًا بِوَزْنٍ ‏.‏