Sunan an-Nasa'i, Volume 5, Book 46, Hadith 4930 (DarusSalam) ⓘ
It was narrated from 'Amrah that 'Aishah said: "Cutting off (the hand of the thief) is for one-quarter of a Dinar or more."
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ يَحْيَى بْنِ سَعِيدٍ، وَعَبْدِ، رَبِّهِ وَرُزَيْقٍ صَاحِبِ أَيْلَةَ أَنَّهُمْ سَمِعُوا عَمْرَةَ عَنْ عَائِشَةَ قَالَتِ الْقَطْعُ فِي رُبُعِ دِينَارٍ فَصَاعِدًا .
also referenced under: Hadith 4926 (Reference) & Book 46, Hadith 57 (In-Book)