قَالَ يَحْيَى قَالَ مَالِكٌ عَنْ دَاوُدَ بْنِ الْحُصَيْنِ، أَنَّهُ سَمِعَ أَبَا غَطَفَانَ بْنَ طَرِيفٍ الْمُرِّيَّ، يَقُولُ اخْتَصَمَ زَيْدُ بْنُ ثَابِتٍ الأَنْصَارِيُّ وَابْنُ مُطِيعٍ فِي دَارٍ كَانَتْ بَيْنَهُمَا إِلَى مَرْوَانَ بْنِ الْحَكَمِ وَهُوَ أَمِيرٌ عَلَى الْمَدِينَةِ فَقَضَى مَرْوَانُ عَلَى زَيْدِ بْنِ ثَابِتٍ بِالْيَمِينِ عَلَى الْمِنْبَرِ ‏.‏ فَقَالَ زَيْدُ بْنُ ثَابِتٍ أَحْلِفُ لَهُ مَكَانِي ‏.‏ قَالَ فَقَالَ مَرْوَانُ لاَ وَاللَّهِ إِلاَّ عِنْدَ مَقَاطِعِ الْحُقُوقِ ‏.‏ قَالَ فَجَعَلَ زَيْدُ بْنُ ثَابِتٍ يَحْلِفُ أَنَّ حَقَّهُ لَحَقٌّ ‏.‏ وَيَأْبَى أَنْ يَحْلِفَ عَلَى الْمِنْبَرِ - قَالَ - فَجَعَلَ مَرْوَانُ بْنُ الْحَكَمِ يَعْجَبُ مِنْ ذَلِكَ ‏.‏ قَالَ مَالِكٌ لاَ أَرَى أَنْ يُحَلَّفَ أَحَدٌ عَلَى الْمِنْبَرِ عَلَى أَقَلَّ مِنْ رُبُعِ دِينَارٍ وَذَلِكَ ثَلاَثَةُ دَرَاهِمَ ‏.‏

Yahya said that Malik had said from Da'ud ibn al-Husayn that heheard Abu Ghatafan ibn Tarif al-Muriyi say, "Zayd ibn Thabit al-Ansariand Ibn Muti had a dispute about a house which they shared. They wentto Marwan ibn al-Hakam who was the Amir of Madina. Marwan decided thatZayd ibn Thabit must take an oath on the mimbar. Zayd ibn Thabit said,'I swear to it where I am.' Marwan said, 'No, by Allah! only in theplace of sorting out claims (i.e. the mimbar).' Zayd ibn Thabit beganto take an oath that his right was true, and he refused to take anoath near the mimbar. Marwan ibn al-Hakam began to wonder at that." Malik said, "I do not think that anyone should be made totake an oath near the mimbar for less than a fourth of a dinar, andthat is three dirhams." Translation Not Available

Book Ref: Muwatta Imam Malik Book 36 Hadith 1416
Web Ref:  Muwatta Imam Malik Book 36 Hadith 12