أَخْبَرَنَا عَلِيُّ بْنُ حُجْرٍ، قَالَ أَنْبَأَنَا شَرِيكٌ، عَنْ مَنْصُورٍ، عَنْ عَطَاءٍ، وَمُجَاهِدٍ، عَنْ أَيْمَنَ بْنِ أُمِّ أَيْمَنَ، يَرْفَعُهُ قَالَ " لاَ تُقْطَعُ الْيَدُ إِلاَّ فِي ثَمَنِ الْمِجَنِّ " . وَثَمَنُهُ يَوْمَئِذٍ دِينَارٌ .
It was narrated that Ayman bin Umm Ayman who attributed it to the Prophet said: "The (hand of) a thief is not to be cut off except for the price of a shield, and in those days the price of a shield was a Dinar." Translation Not Available
Book Ref: Sunan An Nisai Book 46 Hadith 4948
Web Ref: Sunan An Nisai Vol 5 Book 46 Hadith 4951