Sunan an-Nasa'i 4953
It was narrated that 'Ata' said:
"The least for which the hand of a thief is to be cut off is the price of a shield. And the price of a shield in those days was ten Dirhams." (Hasan) Abu 'Abdur-Rahman (An-Nasai) said: Ayman, the one whose narrations preceded, I do not think he was a Companion, and another Hadith has been related from him which proves what we have said:
أَخْبَرَنِي حُمَيْدُ بْنُ مَسْعَدَةَ، عَنْ سُفْيَانَ، - وَهُوَ ابْنُ حَبِيبٍ - عَنِ الْعَرْزَمِيِّ، - وَهُوَ عَبْدُ الْمَلِكِ بْنُ أَبِي سُلَيْمَانَ - عَنْ عَطَاءٍ، قَالَ أَدْنَى مَا يُقْطَعُ فِيهِ ثَمَنُ الْمِجَنِّ ‏.‏ قَالَ وَثَمَنُ الْمِجَنِّ يَوْمَئِذٍ عَشْرَةُ دَرَاهِمَ ‏.‏ قَالَ أَبُو عَبْدِ الرَّحْمَنِ وَأَيْمَنُ الَّذِي تَقَدَّمَ ذِكْرُنَا لِحَدِيثِهِ مَا أَحْسَبُ أَنَّ لَهُ صُحْبَةً وَقَدْ رُوِيَ عَنْهُ حَدِيثٌ آخَرُ يَدُلُّ عَلَى مَا قُلْنَاهُ ‏.‏