Abu Bakr bin Muhammad bin Amr bin Hazm (may Allah have mercy on him) said: A Nabataean who had committed theft was brought to me, and Amrah bint Abd al-Rahman (may Allah have mercy on her) sent me this message: O my son! If his theft does not reach the value of a quarter of a dinar, do not cut off his hand, for Aishah (may Allah be pleased with her) narrated to me that she heard the Messenger of Allah (peace and blessings be upon him) say: "The hand is not to be cut off for a value of less than a quarter of a dinar." He said: His theft was equal in value to two dirhams, so I beat him, fined him and let him go.
Muhammad bin Ishaq is a mudallis and did not state that he heard it directly, but this hadith has also passed before as marfu' (attributed to the Prophet).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السرقة / 17163