"The hand of the thief is to be cut off for one-quarter of a Dinar or more." (Sahih) Abu 'Abdur-Rahman (An-Nasai) said: This is the correct version of the narration of Yahya.
أَنَّهَا سَمِعَتْ عَائِشَةَ تَقُولُ يُقْطَعُ فِي رُبُعِ دِينَارٍ فَصَاعِدًا قَالَ أَبُو عَبْدِ الرَّحْمَنِ هَذَا الصَّوَابُ مِنْ حَدِيثِ يَحْيَى