"The Prophet did not cut off the (hand of) the thief except for the value of a shield, and the value of a shield in those days was a Dinar." (Daif)
لَمْ يَقْطَعِ النَّبِيُّ ﷺ السَّارِقَ إِلاَّ فِي ثَمَنِ الْمِجَنِّ وَثَمَنُ الْمِجَنِّ يَوْمَئِذٍ دِينَارٌ